22 [Optical Square]
- PART OF:
- Tracings 1 - 150
- Made:
- 1941-03-05-1955-03-01
A folder containing drawings relating to the double type optical square.
Details
- Extent:
-
10
240
360
- Identifier:
- STAN3/07/018
- Access:
- Open Access
- copyright:
-
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