[St. John Church] Elevation (Frederick Graff) William Palmer Collection, Athenaeum of Philadelphia. Local ID #: 90.21.6
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[St. John Church] Elevation, Section (Frederick Graff) William Palmer Collection, Athenaeum of Philadelphia. Local ID #: 90.21.17
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[St. John Church] Floorplan (Frederick Graff) William Palmer Collection, Athenaeum of Philadelphia. Local ID #: 90.21.18
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