| GeoHistory Resources | 
| Hexamer General Surveys, Volume 13Williams Marble & Slate Manufacturing Co.'s WorksPlate(s): 1238 Date: 1878 Facility Name: Williams Marble & Slate Manufacturing Co.'s Works Owner: Williams Marble & Slate Manufacturing Co. Products Made: Mantels Ward: 7 Address: S. 24th St, Factory St, and S. 25th St (NW corner) Location: Philadelphia, Philadelphia County, Pennsylvania Work Title: Hexamer General Surveys, Volume 13 Creator: Ernest Hexamer Source: Image File(s): 
			HGSv13.1238 
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