Pan American boeing 377 Stratocruiser Herpa Anniversary 533195 scale 1:500 Highly detailed Herpa Wings dieacst metal 1:500 scale. Herpa item number: 500920-001 HE500920-001 Herpa 70thg anniversary model. To commemorate the anniversary, Herpa is releasing a limited edition of a Boeing 377 Stratocruiser model. The luxurious long-range airliner was introduced into service by launch customer Pan American the same year.Pan American was launching customer of this luxurious airliner. In addition to the main deck with a capacity for maximum 100 passengers, there was a lounge in a second deck below. Clipper Flying Cloud was put into service in 1949 as the sixth of 22 Stratocruisers, being retired only in 1961.