← Back to the building1933 reconstruction · research preview

The measured building.

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.

Source photographs: 464
Identified objects: 4872
Verified printed values: 12046
Disputed values: 20

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)

Open the coordinated research model →

1 matching properties

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.

f4-f5-stair-e-physical-flight-candidateverified · derived

fourth-to-fifth finished-floor rise

148.75 − 137.25

11.5 ft

verified vertical interval; not a flight profile. Candidate only; no accepted physical flight, landing, shaft or floor cut.

IMG_1212 · sheet-W6 · Locate on drawing ↗

Drawing notation: 148.75 − 137.25

verified vertical interval; not a flight profile; reused evidence: reused f4-w6-stair-e broad candidate locator and fourth-floor-w6-outer-face-registration.json; no image reopened

IMG_1213 · sheet-W7 · Locate on drawing ↗

Drawing notation: 148.75 − 137.25

verified vertical interval; not a flight profile; reused evidence: reused provisional f5-stair-e envelope cited in stair-e-upper-diagnostic-placement.json; no image reopened

Calculated from: gate-e-f4-f5-lower-y, gate-e-f4-f5-upper-y

Source-by-source coverage

Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.