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: W229 machine-room trap setting-out chain
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.
31.5 in
Dimension chain follows grid 74 vertical witness to left trap witness. No placement in model coordinates inferred.
Drawing notation: 2'-7½"
Dimension chain follows grid 74 vertical witness to left trap witness. No placement in model coordinates inferred.
59 in
Vertical witness beside trap extends between lower wall reference and trap crosshair chain datum; not a door height or trap length.
Drawing notation: 4'-11"
Vertical witness beside trap extends between lower wall reference and trap crosshair chain datum; not a door height or trap length.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.