Colours of light signals.

Title: 
Colours of light signals.

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Author/Artist: 
British Standards Institution.
Publisher: 
London : British Standards Institution, 1947 (London : Gaylard & Son)
Description: 
22 p. : ill. (1 folded) ; 22 cm.
Format of Material: 
Books
Bib ID: 
71274
Find this in the library
Location: 
Stacks
Call Number: 
TA1250.B86 1947
Notes: 
Cover title.
"British standard 1376: 1947."
Prepared to reconcile the differences that existed in the definitions of signal colors for road traffic control, aviation lighting, railway signals, and lighthouse lights, published separately between 1937-1941.
Gift; Unknown source; 2012; 1000123752
Contents: 
Colours for signal lights --
Colours for signal glasses --
Methods of test --
Appendix. Approximate inspection method for glass filters by means of calibrated glasses.