PURCHASE IMAGE REPRODUCTION
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PHILADELPHIA STREETS DEPARTMENT, SURVEY AND DESIGNS BUREAU
Frank Morelli
Survey Bureau Manager
Philadelphia Streets Dept.
Phone: (215) 686-5540
Email: frank.morelli@phila.gov
Plan, Philadelphia County Civil Defense, Emergency Routes. Location of gateways. Revised June 29, 1951., 1951
Original size: 22 x 27 in. (estimated)