[nb-NO]Details[nb-NO]
- [nb-NO]Title[nb-NO]Letter from K.A. Bauer, Carl Zeiss, Inc. to Maude Bennot, Director of the Adler Planetarium
- [nb-NO]Reference[nb-NO]ZPC.S2.F1.10
- [nb-NO]Scope and Content[nb-NO]Letter 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.
- [nb-NO]Physical description[nb-NO]One page, 8.5 x 11 inches
- [nb-NO]ISBN[nb-NO]
- textual record
- [nb-NO]Level of description[nb-NO]ITEM
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