Philadelphia Map - City of Philadelphia 1752 This is a very rare map, and is a 1850 reprint of an important 1752 map originally issued by N. Scull and G. Heap. George Heap, a surveyor and city coroner of Philadelphia, and Nicolas Scull, who was the Surveyor General of the Province of Pennsylvania. He prepared the original map to illustrate the roads, canals, and important landowners of Philadelphia and surrounding vicinity. This map also features the first known sketch of the Philadelphia State House, which, in 1752 when this map was designed, was as yet incomplete. We can surmise, therefore, that the sketch of the State House that appears here was in fact drawn from blueprints, to which, as city officials, both Scull and Heap would have had access. Date 1752