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: Stair E · W226 longitudinal Section A-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.
160.25 ft-drawing-datum
Regional Stair E datum in Section A-A.
Drawing notation: DETAILS OF STAIR E / UPPER STORIES / W226
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
173.25 ft-drawing-datum
Regional Stair E datum in Section A-A. Preserve separately from 171.75 exterior/Main and 173.75 schedule/Madison controls.
Drawing notation: DETAILS OF STAIR E / UPPER STORIES / W226
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
185.25 ft-drawing-datum
Regional Stair E datum in Section A-A.
Drawing notation: DETAILS OF STAIR E / UPPER STORIES / W226
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
13 ft
Calculated as 173.25 - 160.25 from two printed W226 regional datums.
Drawing notation: DETAILS OF STAIR E / UPPER STORIES / W226
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
12 ft
Calculated as 185.25 - 173.25 from two printed W226 regional datums.
Drawing notation: DETAILS OF STAIR E / UPPER STORIES / W226
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.