small_trap_vertical_witness
2′-4″28 in
Separate vertical witness in small trap; no dimensions transferred from larger trap.
Drawing notation: 2′-4″
Separate vertical witness in small trap; no dimensions transferred from larger trap.
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: catalogue/OCR searched before sequential inspection of one <=1000px JPEG65 derivative from public/archive/drawings/complete-upright/IMG_1130.webp. Selected visible regions only, not full measured extraction. Coordinates normalized to unrotated access image; principal lettering upright. No modeling authorized. Partial timed visual review: Source-local printed evidence only; endpoint finish classes, installed locations and accepted geometry remain unresolved. Partial timed visual review: Machine-room trap local setting-out witnesses; previous trap dimensions, room bounds, door size, materials and floor elevation retained without duplication. Partial timed visual review: Source-local detail only; no installed quantity, floor geometry or accepted model placement. Printed floor/room assignment preserved separately. Partial timed visual review: Prior text/register/inventory crosswalk only. All numeric/notation/review history remains in canonical source records; no newly verified property or floor/shaft geometry. Partial timed visual review: undefined Partial timed visual review: Source-local detail/region evidence only. Printed type/floor applicability does not establish installed occurrences.
Highlighted reading: 2′-4″. Separate vertical witness in small trap; no dimensions transferred from larger trap.
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Scroll or pinch to inspect this drawing. The gold outline locates the selected reading. 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.
28 in
Separate vertical witness in small trap; no dimensions transferred from larger trap.
Drawing notation: 2′-4″
Separate vertical witness in small trap; no dimensions transferred from larger trap.