[nb-NO]Details[nb-NO]
- [nb-NO]Title[nb-NO]Letter from F. Wagner Schlesinger, Director of the Adler Planetarium to R.G. Olt, Optron Laboratory
- [nb-NO]Reference[nb-NO]ZPC.S3.F1.7
- [nb-NO]Scope and Content[nb-NO]In response to Olt's inquiry in a letter from October 19, 1945, Schlesinger describes the lamp used for the Zeiss' optical pointer and its specifications. An actual lamp in a Bakelite base was also sent to Olt as were technical details and instructions. The letter asks that the lamp and base not be adjusted in any way.
- [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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