American Fuze ID Needed

[doppz92]

Hello, another one, unknown to me. Looks American, but I need a proper ID. It's entirely made of brass.

 

[sgdbdr]

TM 4-205 Coast artillery ammunition C2 1944 has the answer page 46 : 21s AA Mk III A2. This is an antiaircraft time fuze MKIIIA1 with the BP magazine charge reduced in weight from 95 to 15 grains. This weight of charge is sufficient to actuate the Mk X and M20 boosters (3-inch shells)... etc.

 

[doppz92]

Hi sgdbdr, thanks a lot, this is'nt my field really, can you tell me more about the type of shell and casing? Were these used only in the US since you mention coastal defense? If you have any picture or drawing it will be very helpful.

 

[sgdbdr]

https://archive.org/details/TM4-205/page/n55/mode/2up

 

[MINENAZ16]

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