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: Lookout guard-rail type, source-local plan/elevation
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.
0.25 in
Leader identifies small pin; diameter interpretation follows circular pin representation, not all hinge bolts.
Drawing notation: 1/4" PIN
Leader identifies small pin; diameter interpretation follows circular pin representation, not all hinge bolts.
1.5 in
Printed rod size; source-local type, no installed rail quantity or span.
Drawing notation: 1½" OAK ROD
Printed rod size; source-local type, no installed rail quantity or span.
3 in
Plan witness from receiver outer end to wall-side reference; not wall thickness.
Drawing notation: 3"
Plan witness from receiver outer end to wall-side reference; not wall thickness.
1.75 in
Left plan chain interval from wall-side reference to pivot line; no whole rail span.
Drawing notation: 1¾"
Left plan chain interval from wall-side reference to pivot line; no whole rail span.
4.25 in
Adjacent plan-chain interval from pivot line to sleeve-end line; no total rail span.
Drawing notation: 4¼"
Adjacent plan-chain interval from pivot line to sleeve-end line; no total rail span.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.