Ring-punch for light star centres

Mushroom-shaped handle with short steel stem with a hollow end, for producing ciruclar marks on copper. Used to make small true circles which formed part of many chart symbols. Made and used by Roy Cooney, former Hydrographic Office engraver.

Object Details

ID: ZBA8759
Type: Tool
Display location: Not on display
Creator: Cooney, Roy J. L.
Credit: National Maritime Museum, Greenwich, London
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