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

Glass Manufacturers' Marks on Bottles ~ Page One

Can anyone identify this shell casing? (More info in comments) : r

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military - Can anyone tell me anything about the markings on these

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Anyone able to tell me what the markings on the bottom of this

Anyone able to tell me what the markings on the bottom of this

Huge 105mm casing, cant make sense of the markings. : r

Can anyone help identify this shell casing? : r/Militariacollecting

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Glass Manufacturers' Marks on Bottles ~ Page Two