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: Depicted first-floor dumbwaiter door
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 points to the first-floor door elevation; independent of any galvanized-steel assumption.
Drawing notation: COUNTER-BALANCED PRESSED STEEL DOORS
Leader points to the first-floor door elevation; independent of any galvanized-steel assumption.
42 in
Vertical witness beside the first-floor section opening; source-local endpoints only.
Drawing notation: 3′-6″
Vertical witness beside the first-floor section opening; source-local endpoints only.
30 in
Vertical first-floor line to bottom-of-opening witness; no world elevation.
Drawing notation: 2′-6″
Vertical first-floor line to bottom-of-opening witness; no world elevation.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.