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)Original sheet identity has not yet been reconciled.
Extraction: Reviewed · extraction partial. Partial timed visual review: Partial first-pass review of public/archive/drawings/complete-upright/IMG_1013.webp. Regions use unrotated access-image normalized coordinates; rotationDegrees is clockwise correction for readable text. Selected evidence only; no model geometry authorized. Partial timed visual review: Source-local drawing evidence; all new properties excluded from architectural authoring. Partial timed visual review: Selected local fabrication and note evidence only; prior verified readings reused. Partial timed visual review: Depicted shop-drawing assembly only; no exact room geometry, installed quantity, historical room assignment or accepted model placement.
Highlighted reading: 1½″. Lower chain immediately before leftmost 11-inch field; distinct from upper 2½-inch segment.
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Scroll or pinch to inspect this drawing. The gold outline locates the selected reading. Archival drawing photograph · Oregon Historical Society research collections.
Open source image separately ↗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.
1.5 in
Lower chain immediately before leftmost 11-inch field; distinct from upper 2½-inch segment.
Drawing notation: 1½″
Lower chain immediately before leftmost 11-inch field; distinct from upper 2½-inch segment.