world war one - What's this 1917 shell casing, more exactly

I've been gifted this vase that is obviously made out of a large shell casing. It has 'MARZ 1917' stamped on the bottom, plus other less understandable markings: 'St', 'G', '36', 'HL 25'. I'm attac

world war one - What's this 1917 shell casing, more exactly? - History Stack Exchange

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Pair of WW1 British Brass Artillery Shells Dated 1917 For Sale at 1stDibs 1917 artillery shell, antique artillery shell for sale, ww1 shells for sale

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Here's a World War One lighter someone made out of a .303 shell. The cap is a hollowed out bullet. There's the initials RK 1917 faintly tapped into it. : r/lighters