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.
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.
f3-stair-dverified · observed
upright_plan_world_orientation
Page-right = Broadway / west; page-down = Main / north
Drawing notation: MADISON ST. / BROADWAY / MAIN ST. / SIXTH ST.
Raw master upright; rotate the stored 1650×2200 access WebP 90° clockwise to match this reference. Compass/street key read in the single overview; consistent with existing canonical axes.
Source-by-source coverage
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.