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#1
17-07-20, 16:37
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I wonder if the Bore brushes are for the 75mm Pack howitzer M1 (Airborne)
Post War I believe the Gun was re designated as M116? They certainly appear to be US design I have a similar style 57mm bore brush on my M1 57mm AT gun and have seen something similar for US 37mm Guns Rob 
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#2
17-07-20, 16:55
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I know that for the 105 howitzer and the 106 recoiless, the brushes were the same. I suspect that also will be the case with the 75 and 76mm guns.
Re the two gauges, the only thing that I can think of that would use pressures in that range would be for transmissions. Most hydraulic systems are much higher, and engine oil pressures along with pneumatic systems much lower.
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#3
18-07-20, 03:08
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Thanks for the input gentlemen. Most of these items I have had kicking about for years without knowing for sure what they are for. Now I have a better idea! BP
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