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)Object: Stair H first-floor wall interface
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.
Leader at upper-left first-floor plan wall. Height, profile and extent not established.
Drawing notation: WOOD WAINSCOT
Leader at upper-left first-floor plan wall. Height, profile and extent not established.
21 count
Rotated printed first-floor plan flight label; text verified with upright crop. Not a vertical dimensional height.
Drawing notation: DOWN 21 RISERS
Rotated printed first-floor plan flight label; text verified with upright crop. Not a vertical dimensional height.
3 count
Source-local three-flight arrangement visible; does not establish equal subdivisions or metric placement.
Drawing notation: [three numbered flight strips in 1ST FLOOR PLAN]
Source-local three-flight arrangement visible; does not establish equal subdivisions or metric placement.
2 count
Two intermediate landing connections evident in plan arrangement; exact elevations and boundaries unresolved.
Drawing notation: [two turns separating three flight bands]
Two intermediate landing connections evident in plan arrangement; exact elevations and boundaries unresolved.
Upper horizontal plan strip appears numbered1 through8; retained as source-local candidate pending independent recount.
Drawing notation: 1–8
Upper horizontal plan strip appears numbered1 through8; retained as source-local candidate pending independent recount.
Lower horizontal plan strip numbered9 through15, with turn/landing endpoints still requiring verification.
Drawing notation: 9–15
Lower horizontal plan strip numbered9 through15, with turn/landing endpoints still requiring verification.
Left vertical plan strip numbered16 through21; flight traversal direction depends on numbering convention.
Drawing notation: 16–21
Left vertical plan strip numbered16 through21; flight traversal direction depends on numbering convention.
8 count
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Drawing notation: 8 - 1 + 1
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Calculated from: stair-closeout1013a-img_1121-m019
7 count
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Drawing notation: 15 - 9 + 1
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Calculated from: stair-closeout1013a-img_1121-m020
6 count
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Drawing notation: 21 - 16 + 1
Inclusive count of apparent numbered risers. Sum21 agrees with existing UP/DOWN21 but remains a candidate and does not determine tread count or rise. Candidate calculation only; its parents are not accepted physical controls.
Calculated from: stair-closeout1013a-img_1121-m021
Both access and master crops show 2–8. Do not promote prior apparent 1–8 range or inferred eight rises based only on the total21.
Drawing notation: [2, 3, 4, 5, 6, 7, 8 legible; starting 1 at left newel/boundary obscured]
Both access and master crops show 2–8. Do not promote prior apparent 1–8 range or inferred eight rises based only on the total21.
Numeric value unresolved
An eight-rise candidate remains in prior source; this independent review cannot certify it.
Drawing notation: [starting digit / first rise not securely legible]
An eight-rise candidate remains in prior source; this independent review cannot certify it.
Seven labels independently readable in lower horizontal band; no metric lengths inferred.
Drawing notation: 9, 10, 11, 12, 13, 14, 15
Seven labels independently readable in lower horizontal band; no metric lengths inferred.
7 count
Inclusive arithmetic count of seven printed numbered stations; physical terminal-riser convention remains unaccepted.
Drawing notation: 15 - 9 + 1
Inclusive arithmetic count of seven printed numbered stations; physical terminal-riser convention remains unaccepted.
Calculated from: stair-companion1013b-img_1264-m016
Six labels independently readable in left vertical band; terminal21 near upper landing remains a numbered station.
Drawing notation: 16, 17, 18, 19, 20, 21
Six labels independently readable in left vertical band; terminal21 near upper landing remains a numbered station.
6 count
Inclusive count of six printed numbered stations; does not establish six fabricated risers or equal height.
Drawing notation: 21 - 16 + 1
Inclusive count of six printed numbered stations; does not establish six fabricated risers or equal height.
Calculated from: stair-companion1013b-img_1264-m018
40 in
Right-side vertical lower numbered-band witness; a source plan dimension, not accepted rail clear width.
Drawing notation: 3′-4″
Right-side vertical lower numbered-band witness; a source plan dimension, not accepted rail clear width.
10 in
Short vertical witness between the two horizontal numbered flight bands; not a floor elevation.
Drawing notation: 10″
Short vertical witness between the two horizontal numbered flight bands; not a floor elevation.
90 in
Long right-side vertical plan witness beside the central10in control; no inferred sum or riser distribution.
Drawing notation: 7′-6″
Long right-side vertical plan witness beside the central10in control; no inferred sum or riser distribution.
60 in
Horizontal witness across lower numbered strip. No tread count or individual going calculated from it.
Drawing notation: 5′-0″
Horizontal witness across lower numbered strip. No tread count or individual going calculated from it.
40 in
Upper horizontal H flight strip witness from outer drawn enclosure reference toward central newel/guard boundary. No handrail clearance.
Drawing notation: 3′4″
Upper horizontal H flight strip witness from outer drawn enclosure reference toward central newel/guard boundary. No handrail clearance.
40 in
Lower H return strip source transverse span; guard/newel faces and outer wall finish plane unclassified.
Drawing notation: 3′4″
Lower H return strip source transverse span; guard/newel faces and outer wall finish plane unclassified.
10 in
Dimension lies across central horizontal rail/newel band between the two flight strips. It is not a tread-going reading.
Drawing notation: 10″
Dimension lies across central horizontal rail/newel band between the two flight strips. It is not a tread-going reading.
60 in
Bottom horizontal printed span between the numbered15-side and9-side flight edge witnesses. Numbered bands already extracted; no new count or calculated going.
Drawing notation: 5′0″
Bottom horizontal printed span between the numbered15-side and9-side flight edge witnesses. Numbered bands already extracted; no new count or calculated going.
40 in
Right landing longitudinal source span, separately scoped from the equal numeric transverse flight widths.
Drawing notation: 3′4″
Right landing longitudinal source span, separately scoped from the equal numeric transverse flight widths.
Numeric value unresolved
Left bottom span carries a fine fraction; withheld rather than copied from the right landing.
Drawing notation: 3′4[small fraction not certified]
Left bottom span carries a fine fraction; withheld rather than copied from the right landing.
Readable station progression only. Starting1 remains obscured; this does not certify an8+7+6 riser recipe.
Drawing notation: [readable upper horizontal2…8 proceeds right; lower9…15 proceeds left; left vertical16…21 proceeds up]
Readable station progression only. Starting1 remains obscured; this does not certify an8+7+6 riser recipe.
Calculated from: stair-companion1013b-img_1264-m014, stair-companion1013b-img_1264-m016, stair-companion1013b-img_1264-m018
Page-local handedness from readable bands only; no world transform or accepted walking path.
Drawing notation: [clockwise: upper strip right, right turn down, lower strip left, left turn up in paper x-right/y-up frame]
Page-local handedness from readable bands only; no world transform or accepted walking path.
Numeric value unresolved
No clear-width certification or closed landing polygon.
Drawing notation: [3′4″ strip witnesses do not account for cap, rail and wall finish intrusions]
No clear-width certification or closed landing polygon.
Numeric value unresolved
Independent alternate crop still cannot certify first digit/rise. Existing8+7+6 candidate remains unreviewed; absence of secure glyph is not an irrecoverable evidence conclusion.
Drawing notation: [2–8 readable; initial1 not established at left boundary/newel]
Independent alternate crop still cannot certify first digit/rise. Existing8+7+6 candidate remains unreviewed; absence of secure glyph is not an irrecoverable evidence conclusion.
Calculated from: stair-companion1013b-img_1264-m015
40.75 in
Left bottom landing source span from drawn inner enclosure wall reference to numbered15-side turn/flight boundary. Both1264 and1121 support fraction; no accepted finish-face equivalence.
Drawing notation: 3′4¾″
Left bottom landing source span from drawn inner enclosure wall reference to numbered15-side turn/flight boundary. Both1264 and1121 support fraction; no accepted finish-face equivalence.
Classifies source-local witness stations only; wood wainscot rule and old numbered bands reused. Finished wall offset and handrail intrusion unresolved.
Drawing notation: [left landing witness begins at inner drawn wall line and ends at15-side flight/guard reference]
Classifies source-local witness stations only; wood wainscot rule and old numbered bands reused. Finished wall offset and handrail intrusion unresolved.
Original white drawing layer: lower horizontal plan band shows9,10,11,12,13,14,15. Resolves numeral range only; station15 is at turn/landing edge and allocation of risers, treads and boundaries remains separate.
Drawing notation: 9–15
Original white drawing layer: lower horizontal plan band shows9,10,11,12,13,14,15. Resolves numeral range only; station15 is at turn/landing edge and allocation of risers, treads and boundaries remains separate.
Original white drawing layer: left vertical plan strip shows16 through21. Printed source station range only, not accepted flight traversal direction, going or world geometry.
Drawing notation: 16–21
Original white drawing layer: left vertical plan strip shows16 through21. Printed source station range only, not accepted flight traversal direction, going or world geometry.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.