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: JAN. — beside Stair A
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.
Small separately enclosed labeled area below the public lobby; analytical instance ID, not a historical room number.
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
-56.984 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
55.187 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
-47.423 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
55.015 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
-47.197 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
60.437 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
-56.7 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
60.829 ft · estimated uncertainty ±2 ft
Drawing notation: JAN. — beside Stair A
Manually traced region in raw-upright JPEG coordinates; not an exact architectural measurement.
Calculated from: f1-room-janitor-east-footprint-trace
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.