From the Margret and Hans Augusto Rey Papers.; Portable planetarium "Bowl of Night" (portable planetarium replica) with its storage box, created by H.A. Rey undated. 12" x 14.5"
Oral history.; Interview conducted on August 21, 1972 with the Honorable Russell C. Davis in his office in Jackson, Mississippi. He was born in Rockville, Maryland. After completing two years at the University of Maryland, Davis took employment...
From the Margret and Hans Augusto Rey Papers.; Instructions/background, labeled "Evidence of Concept," for H.A. Rey's star-finding device, the "Portable Planetarium" [ca. July 1950-November 1957]. 8.5" x 11"
