Can anyone tell me what the markings on the bottom of this shell casing mean? (My thumb is covering a business logo) : r/MilitaryHistory

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Shell casing identification : r/Militariacollecting

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Bullet casing Id. Believe it says S S 10 not sure of the other

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TIL about the 'thousand-yard stare', which is a phrase often used

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Does every gun's bullet have unique number/mark printed over it

I have a bullet that has S.L. 43 on the bottom of it. Is this

Can anyone help me learn more about the symbols in my family

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