Four pins and badges from the collection of Otto Berg: his gold-tone enameled NASA tie bar awarded for 30 years of service; his gold-tone enameled NASA tie tack awarded for 25 years of service; a standard gold-tone NASA tie tack; and a badge from COSPAR XIII, a Sun-Earth Symposium held at Leningrad in May 1970. In overall fine condition.
From the collection of Dr. Otto Berg.
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