Details
- TítuloLetter from K.A. Bauer, Carl Zeiss, Inc. to Maude Bennot, Director of the Adler Planetarium
- ReferenciaZPC.S2.F1.10
- Ámbito de contenidoLetter addressing the problem of the moon projection, stating that the Zeiss factory confirmed that part 437 [gold mirror] is perfectly round and that the poor image noted by Adler Planetarium could be due to (1) poorly adjusted bulb or (2) projection surface is not plane.
- Descripción físicaOne page, 8.5 x 11 inches
- ISBN
- textual record
- Nivel de descripciónITEM