513-515 Spruce St.
City surveys are completed by the city and/or by the property owner for the purposes of city documentation and oftentimes for fire insurance policies. The city surveys sometimes do not contain a lot of information, but do notate ownership and lot size associated with a specific date.
This 1868 survey has no name but does indicate the lot size of 19 feet 8 1/2 inches by 49 feet 6 inches.
|City of Philadelphia Archives|