An unfired Second World War US 75mm M18 tank shell, dated 1943 B.Co.
Case made by Bossert Company, Inc., Utica, New York. Primer - Elwood Ordnance Plant, Joliet,
The 75 mm gun was the standard American gun mounted to a mobile platform during World War II. They were primarily mounted on tanks, but were also mounted on the B-25 Mitchell medium bomber aircraft. There were
five variants used during the war: M2, M3, M4, M5, and M6. They were considered the standard American tank guns. The M2 and M3 were used on the M3 medium tank, the M3 was used on the M4 Sherman tank, and the M6 was used on the M24 Chaffee light tank. The M3 was also used on Medium Tank M7. The M4 variant was fitted on some North American B-25 Mitchell medium bomber aircraft.
