Part of a Newbegin variable P filter

Part of a Newbegin variable P filter made of white metal. The metal is formed into a hollow cylinder with a screw thread at one end.

Object Details

ID: AST0929.28
Type: Part of a Newbegin variable P filter
Display location: Not on display
Creator: Unknown
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 37 mm; Diameter: 31 mm
Parts: Newbegin telescope (Telescope)
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