Barr And Stroud British 7x CF41 Military Binoculars ANTIQUE Leather Case WW2

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Barr And Stroud British 7x CF41 Military Binoculars 
A pair of British military binoculars, by Barr and Stroud. 
The barrels are marked with the British broad arrow in recessed yellow paint (which has unfortunately been worn away on this pair). 
The stamps on the rear barrels read:
“Barr & Stroud 7x CF41 Glasgow & London.” and “A.P. No. 1900A Serial No. 53200” 
Dimensions and weight:
The binoculars have a length of 9.5 inches (24cm), a width of 7.25 inches (18.3cm) and a height of 2.75 inches (7cm). They weigh 1.590 Kg. 

Description:

The Barr & Stroud CF41 was the standard British naval binocular during WWII, entering service in 1935 as Admiralty Pattern 1900A, and continued to be used as recently as the Falklands War in 1982

The CF41 was derived from the civilian CF30 model and differs primarily in having an internal filter system. It is also considerably heavier having watertight glands on all moving joints (Barr & Stroud Booklet C.50) and unlike the CF30 could be filled with dry air to prevent condensation and fungus. Contrary to popular belief there is no evidence that the CF41 was ever nitrogen filled. During servicing a hand pump desiccator, a 25 kg apparatus which looked like bicycle tire pump, was attached to the desiccator connections, and the air inside the binocular was hand pumped from the binocular into the apparatus to a silica gel filled desiccator chamber which dried the air prior to its being pumped back into the binocular.

The CF41 is internally fitted with selectable green, grey and yellow filters.

The large yellow arrows on the barrels on the binocular denote government ownership and were placed there to prevent pilfering. Most British WWI and WWII binoculars had these arrows, but only Admiralty binoculars had painted yellow ones.

I have so far seen CF41’s in three movies. Not unexpectedly it appears in “Sink the Bismark!” (1960) and “The Longest Day” (1962). Most unexpectedly, Miss Marple played by Jane Rutherford can be seen wielding one in “Murder Ahoy!” (1964).

Category: Cameras and Photography:Telescopes and Binoculars:Binoculars and Monoculars
Location: Cambridge

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