A group of observers and maintenance engineers adjusting the Yapp spectroscope

Photographic print relating to the Yapp spectrograph AST1177.

ID:	REG18/000454.7
Type:	Photographic print
Display location:	Not on display
Creator:	Ministry of Information
Date made:	circa 1945
Credit:	© Crown copyright. National Maritime Museum, Greenwich, London
Measurements:	Overall 253 mm x 199 mm

Object Details