Keywords: Philadelphia NS aerial photo 1966.jpg Aerial photograph of the Philadelphia Naval Shipyard Philadelphia Pennsylvania USA on 20 July 1966 Many mothballed ships are visible among them three Essex-class aircraft carriers USS Leyte CVS-32 or USS Tarawa CVS-40 top USS Lake Champlain CVS-39 and USS Antietam CVT-36 two Independence-class light carriers a Commencement Bay-class escort carrier two active Iwo Jima-class helicopter carriers and three Iowa-class battleships LOC-image HAER PA 51-PHILA 709-16 http //lcweb2 loc gov/cgi-bin/displayPhoto pl path /pnp/habshaer/pa/pa3400/pa3416/photos topImages 359964pr jpg topLinks 359964pv jpg 359964pu tif title HAER 20PA 51-PHILA 709-16 displayProfile 0 HAER PA 51-PHILA 709-16 1966-07-20 Historic American Buildings Survey frame removed PD-USGov 1966 in Philadelphia Aerial photographs of Philadelphia Philadelphia Naval Shipyard Philadelphia Naval Inactive Ship Maintenance Facility |