Navy Masthead Key Queery
 

Hello there.
Desperate for info on several morse keys !
In particular - who made the Navy masthead signalling lamp keys ? What years
were they made etc.. ?
Please take a look on the WHATKEY page on the www.morsemad.com web site,
particularly interested in Manufacturers / year of manufacture etc..
Many thanks in advance.

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Cheerio from John / G0RDO
www.morsemad.com