Composite photograph of the Moon's surface, taken on one of the Lunar Orbiter missions, circa 1960s.
Inscription on verso: "2B 16521 IV Fr 138. 3 of 3."
Photograph of an unidentified man inspecting Boeing's full-scale mock-up of the Agena-class Lunar Orbiter, circa 1960s.
Typed caption: "Full Scale Boeing Mock-up of Agena Class Lunar Orbiter."
Typed in margin: "D2-22777-1. 4-i."