"Atlas of the 27th & 46th wards of the city of Philadelphia: from private plans, actual surveys & official records"
Elvino V. Smith
Includes Index and 21 colored maps; 58 cm. with corrections to 1912. Most maps are on the scale of 1:1200 or 1 inch to 100 feet.
Philadelphia: Elvino V. Smith, compiler and publisher, 1909.