النتائج

Letter from K.A. Bauer [signed on behalf of Bauer by "LBP"] to the Adler Planetarium

Letter from L.B. Pelzer to the Adler Planetarium

Letter from K.A. Bauer, Carl Zeiss, Inc. to Dr. F. Wagner Schlesinger, Director of the Adler Planetarium

Description of new model Zeiss Planetarium instrument

Copy of August 17, 1959 Zeiss projector price quotation from Walter Schlipp, Car Zeiss, Inc. to Robert I. Johnson, Acting Director of the Adler Planetarium

Letter from Walter Schlipp of Carl Zeiss, Inc. to the Chicago Park District

Cover letter from Walter Schlipp, Carl Zeiss, Inc. to Robert I. Johnson, Manager [sic] of the Adler Planetarium and accompanying copy of a letter from Walter Schlipp to the Chicago Park District