Dettagli

Robert I. Johnson with unidentified people and telescopes

APHP.S1.A.F5.5

Robert I. Johnson, another man and a boy are looking at a telescope in the Planetarium. There are telescopes throughout the room.

One 4 x 5 inch black and white print

Telescopes, Adler Planetarium & Astronomy Museum, Amateur telescope makers

graphic material

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