does any one have any id ears on this i think its a periscope its dated 1916

huwshpis

War Hero
As far as I can see, the markings are

N (Broad Arrow) O 1
B&W
MARK IV
1916?
1612b

I have conducted a few searches and found nothing useful. In particular, I can't recognise the abbreviation of the maker's name B&W? Makers of military optics during WWI were Ross, Barr and Stroud, Dollond and Aitchison, Negretti & Zambra, Heath & Co, Cooke, Troughton and Simms and a few others, but my researches don't put a B&W amongst them.

I don't know if the Admiralty bought early Burmeister & Wain diesel engines, so they might be a red herring.
 

arantxa

Newbie
thanks
 

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arantxa

Newbie
thanks
 

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