identification - What are these shell case markings? - History

I have this shell case which was handed down in my family. We know very little about it and wondered if anyone can help identify the markings. I would be very grateful for any assistance.

Cartridge case terminology and identification – Stephen Taylor, WW2 Relic Hunter

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Artillery shell cases, fuzes, primers and tubes. – Stephen Taylor, WW2 Relic Hunter

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Ancient Egyptian. Coffin and Mummy of Paankhenamun. 945 BC–715 BC. Thebes. Cartonnage, gold leaf, pigment, and human remains Mummification is the ancient Egyptian funerary practice of drying out a corpse for preservation.

Cartridge case terminology and identification – Stephen Taylor, WW2 Relic Hunter

Artillery shell cases, fuzes, primers and tubes. – Stephen Taylor, WW2 Relic Hunter

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Artillery shell cases, fuzes, primers and tubes. – Stephen Taylor, WW2 Relic Hunter

Large calibre markings (The Western Front Museum)

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