Aerial view east toward the Presidio. Boeing 377 Stratocruiser N1025V Clipper Celestial served from 1948-1961, and set the record for the most hours flown for a Pan American World Airways Boeing 377 (36,690hours)[Pan American's Double-decked Super ]'Strato' Clippers - the world's largest over-ocean airliners - fly both deluxe President and thrifty Rainbow services. On President service these fast, spacious sky giants featre many extras in comfort and service including the famous lower-deck club lounge.] (inscription - postmark July 2, 1958)