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 C
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.
Gross stair/landing assembly envelope only. Accepted floor opening, floor connection and flight geometry remain unresolved.
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
56.9924 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
55.2673 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
72.9685 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
55.4026 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
73.5344 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
47.2031 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
79.5608 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
47.2534 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
79.2118 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
61.113 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
56.6633 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
60.9201 ft · estimated uncertainty ±3 ft
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Calculated from: b-stair-c-footprint-trace
Numeric value unresolved
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
22 count
Visible marked flight only; do not infer tread, riser height or connected level from count.
Drawing notation: STAIR C
Manual source location in the explicitly stated upright reference. Metric geometry is a provisional trace, not a printed dimension.
Unsigned plan directions: horizontal strip lies Main/north/page-bottom of Elevator2; perpendicular strip lies Broadway/west/page-right. Source-side relationship only, without a fitted transform.
Drawing notation: [flight strips at page-bottom and page-right of ELEVATOR NO.2]
Unsigned plan directions: horizontal strip lies Main/north/page-bottom of Elevator2; perpendicular strip lies Broadway/west/page-right. Source-side relationship only, without a fitted transform.
Do not infer signed three-dimensional path from strip axes; individual arrowheads and landing junctions need independently reviewed enlarged source. Prior verified count is reused, not duplicated.
Drawing notation: UP 22R [arrow path requires endpoint review]
Do not infer signed three-dimensional path from strip axes; individual arrowheads and landing junctions need independently reviewed enlarged source. Prior verified count is reused, not duplicated.
Numeric value unresolved
No securely classified printed clear-width witness established by this crop.
No securely classified printed clear-width witness established by this crop.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.