Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Original sheet identity has not yet been reconciled.
Extraction: Reviewed · extraction partial. Partial timed visual review: Partial locator review after catalogue/OCR using <=1000px JPEG65 derivative of public/archive/drawings/complete-upright/IMG_1148.webp. Lettering upright. Regions are original access-image normalized coordinates. Locating a region does not claim full review of its fine detail. No modeling. Partial timed visual review: Additive bounded remaining-region review of upright WebP after queue, OCR and prior packages; no geometry acceptance. Partial timed visual review: Verified 20261011k paint and floor material records reused; no new source inspection Partial timed visual review: Prior finish/material/fixture text findings reused; source not reopened and no duplicate properties added. Partial timed visual review: Source-local view inventory and selective notes/individual properties; repeated-photo correspondence does not establish revision equivalence, installed quantity or exact geometry. Partial timed visual review: Selected source-local properties only; no source-completion claim. Partial timed visual review: Selected wood-block, terrazzo and marble floor stack dimensions newly read. Linoleum/tile fine-layer boundaries, observation-hole dimensions, remaining channels and basement Sheet 2 remain open.
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Scroll or pinch to inspect this drawing. Archival drawing photograph · Oregon Historical Society research collections.
Open source image separately ↗Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: LOOKOUT
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: TYPICAL PLAN OF BASEMENT LOOKOUT GALLERY
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: TYPICAL PLAN OF FIRST FLOOR LOOKOUT GALLERY
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: PLAN LOOKING UP OBSERVATION FLOOR HOLE
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: METHOD OF ANCHORING WHEN 4" CHANNELS RUN CROSSWISE OF SUPPORTS
Selected legible locator evidence; partial assembly-local extraction.
4 in
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: 4" CHANNELS
Selected legible locator evidence; partial assembly-local extraction.
3 in/ft
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: 3" DETAIL OF LOOKOUT CONSTRUCTION
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: WOOD BLOCK FLOOR
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: TERRAZZO FLOOR
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: MARBLE FLOOR
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: LINOLEUM FLOOR
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: TILE FLOOR
Selected legible locator evidence; partial assembly-local extraction.
Selected legible locator evidence; partial assembly-local extraction.
Drawing notation: FINISHED FLOOR CONSTRUCTION FOR ALL BUT BASEMENT FLOOR; FOR B'SMT. FL. SEE NOTE ON SHEET #2
Selected legible locator evidence; partial assembly-local extraction.
Numeric value unresolved
Uncertain locator reading; value withheld; full detail review outstanding.
Drawing notation: [floor layer thicknesses, bolts, channels and observation-hole dimensions unresolved]
Uncertain locator reading; value withheld; full detail review outstanding.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: PAINT ENTIRE INTERIOR OF LOOKOUT INCLUDING WALL, CEILING, WOODWORK, OBSERVATION UNIT ETC. 2 COATS OF FLAT BLACK PAINT
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
2 count
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: 2 COATS
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: FLOOR OBS. HOLE TO BE SUPPLIED WHERE SHOWN ON PLANS
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: HINGED FRAMES WITH GLASS PANELS TO BE USED AT ALL SLOT OPENINGS
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: CORK CARPET & SOUND DEADENING FELT CEMENTED TO FLOOR
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: COAL TAR OR ASPHALT ON CONCRETE FILL
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
Drawing notation: CONCRETE FILL
Depicted source-local component only; no installed quantity, room geometry or world placement inferred.
0.5 in
Bolt diameter requirement in first-floor typical-gallery plan note. Unlocated type, not installed bolt quantity; other views can show different hardware.
Drawing notation: NOTE: ALL BOLTS TO BE 1/2" ⌀
Bolt diameter requirement in first-floor typical-gallery plan note. Unlocated type, not installed bolt quantity; other views can show different hardware.
Basement typical-plan armrest note; length is relational, no numeric gallery envelope assigned.
Drawing notation: TO RUN ENTIRE LENGTH OF GALLERY
Basement typical-plan armrest note; length is relational, no numeric gallery envelope assigned.
2.5 in
Stock width in leader naming the section's flat brace; not a gallery dimension.
Drawing notation: 2½" × ¼" FLAT
Stock width in leader naming the section's flat brace; not a gallery dimension.
0.25 in
Stock thickness in same flat-brace leader; source-local only.
Drawing notation: 2½" × ¼" FLAT
Stock thickness in same flat-brace leader; source-local only.
0.5 in
Bolt size in brace leader; does not specify number, length or installed distribution.
Drawing notation: ½" ⌀ BOLT
Bolt size in brace leader; does not specify number, length or installed distribution.
0.1875 in
Leader names thickness of the metal observation unit in this section, not glass thickness.
Drawing notation: 3/16" METAL OBS. UNIT
Leader names thickness of the metal observation unit in this section, not glass thickness.
5.25 in
Local horizontal witness from frame line to inner wall/observation-unit face shown in section; rough versus finished face and installed placement remain unaccepted.
Drawing notation: 5¼"
Local horizontal witness from frame line to inner wall/observation-unit face shown in section; rough versus finished face and installed placement remain unaccepted.
Paint relationship for the circular observation-floor-hole view; exact pigment, coating and cover diameter not supplied.
Drawing notation: TO BE PAINTED SAME COLOR AS OUTSIDE WALL FINISH
Paint relationship for the circular observation-floor-hole view; exact pigment, coating and cover diameter not supplied.
2.5 in
Printed woodblock detail wood-block-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 2 1/2"
Printed woodblock detail wood-block-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
2.5 in
Printed woodblock detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 2 1/2"
Printed woodblock detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
5 in
Printed woodblock detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 5"
Printed woodblock detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
0.75 in
Printed terrazzo detail terrazzo-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 3/4"
Printed terrazzo detail terrazzo-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
0.75 in
Printed terrazzo detail screed-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 3/4"
Printed terrazzo detail screed-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
2.5 in
Printed terrazzo detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 2 1/2"
Printed terrazzo detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
4 in
Printed terrazzo detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 4"
Printed terrazzo detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
0.875 in
Printed marble detail marble-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 7/8"
Printed marble detail marble-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
0.75 in
Printed marble detail screed-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 3/4"
Printed marble detail screed-layer-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
2.375 in
Printed marble detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 2 3/8"
Printed marble detail concrete-fill-thickness; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
4 in
Printed marble detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.
Drawing notation: 4"
Printed marble detail total-build-up; source-local vertical layer/stack interval above top of concrete slab. Type detail applies only under its printed finished-floor-construction scope; no installed room area, quantity or floor datum. Fractions independently inspected in native rotated supplementary crop; totals are printed, not calculated.