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any help from what this prism is?

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  1. #1

    Default any help from what this prism is?

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  2. #2

    Default Re: any help from what this prism is?

    Reference Numbers (Part Numbers)

    7637457

    Required Categories

    MATERIAL
    STYLE DESIGNATOR
    III FSC APPLICATION DATA
    THE MANUFACTURERS DATA
    MA

    Required Description

    GLASS, OPTICAL, JAN-G-174, TYPE 580-410, GRADE B
    G3 PORRO
    PERISCOPE M15A1,INTE

    I'm unsure what it all means mate but that is what came off the American National Parts list I have saved

  3. #3

    Default Re: any help from what this prism is?

    Hi Giorgo,

    The prism you have is part of the prismatic gunsight for the 37mm cannon that was fitted to the M15-M15 A1 series of U.S. multi gun half tracks. They had a 37mm main gun and two .50 cal. water cooled machine guns on either side, below for the M15 and above for the M15 A1.

    The same gunsight and 37mm gun was also fitted to the Stuart M3 A1 light tank.

    Cheers, Ned.
    'I do not think we can hope for any better thing now.
    We shall stick it out to the end, but we are getting weaker of course, and the end cannot be far.
    It seems a pity, but I do not think I can write more. R. SCOTT.
    Last Entry - For God's sake look after our people.'

    In memory of Capt. Robert Falcon Scott, Edward Wilson, Henry Bowers, Lawrence Oates and Edgar Evans. South Pole Expedition, 30th March 1912.

  4. #4

    Default Re: any help from what this prism is?

    Nice one Ned, I wondered what "PERISCOPE M15A1,INTE" meant

  5. #5

    Default Re: any help from what this prism is?

    THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    I love the members of this forum.They can find anything!!!

  6. #6

    Default Re: any help from what this prism is?

    Quote by giorgos View Post
    THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    I love the members of this forum.They can find anything!!!
    No kidding. These guys are good. I'm waiting for the day when I actually have an answer. (Hey, it could happen)

    Mike

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