Reference Code: GBR/0180/RGO 9/403
Scope and Contents
Correspondence regarding the instruments of the Cape Observatory, covering the collimator lens, the 40-inch telescope, the regraduation of the movable circle of the Cape reversible transit circle, the Cape 18-inch reflector, and the recording microphotometer and silkworm threads for the telescope and microphotometer eye pieces.
1950 - 1956
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