3 inch shell case for M1902 Cannon

3-inch gun M1903 - Wikipedia

U.S. 3-Inch Field Gun, Model of 1902 Historical Marker

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WW1 British 6 Pounder 1917 Dated Empty Brass Shell Case .

Civil War Hard Tack ration Tin; Relic condition

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37mm empty one pounder projectile.

3 inch field gun hi-res stock photography and images - Alamy

Artillery Shell Casing - Canada

3 inch gun Black and White Stock Photos & Images - Alamy