world war two - What is this artillery shell? - History Stack Exchange

I found this in my Grandfather’s basement. He served in World War 2, in the Pacific Theater. He sadly passed away and we have no idea if this is safe. Can anyone help with identifying this? It is 13

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military - Identify tank or artillery shell - History Stack Exchange

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world war one - What was this 1917 shell casing used for? - History Stack Exchange

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