U-Boat periscope prisms

Glass prism from a U-boat periscope.

Object Details

ID: REL0700.2
Type: Glass prism
Display location: Not on display
Creator: Unknown
Date made: ca.1914
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 55 mm x 100 mm x 75 mm
Parts: U-Boat periscope prisms (Glass prism)