347 S. 4th St. / 337 Pine St. (NE corner of Pine and 4th Sts.)
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 survey from 1784 indicates that Joseph Stride owned the property and that it was 30 feet by 40 feet.
|City of Philadelphia Archives|