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)Sheet number unresolved
Extraction: Reviewed · extraction partial. Reviewed: third-floor corner plan; second-floor corner plan; first-floor sash-jamb section; first-floor corner plan; Section A-A; partial title block. Partial timed visual review: Source-local photographed design detail; no installed quantity, accepted geometry or world placement authorized. Partial timed visual review: Source-local photographed drawing evidence only; stacked marks are interpreted as drawing references, not historical entrance identifiers. No installed quantities or accepted geometry.
Highlighted reading: 3" T.C. TILE. IMG_1247 lower-story northwest-corner evidence; physical geometry remains gated.
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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.
3 in
Local interior corner finish/back-up layer label; T.C. abbreviation is preserved rather than expanded.
Drawing notation: 3" T.C. TILE
IMG_1247 lower-story northwest-corner evidence; physical geometry remains gated.