A long-standing Pittsburgh mystery is growing again!Observant Pittsburghers have surely noticed all of the colored protractors glued to things in public places across Pittsburgh’s neighborhoods.
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. It may seem obvious that surveyors, ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This brass semicircular protractor is ...
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