St Chamond 75mm Field Gun: From Mondragon to WW1 Tanks to Israel

Available from Morphy’s here:
https://auctions.morphyauctions.com/_D__EXCEPTIONAL_CONDITION_ST_CHAMOND_75MM_FIELD_GU-LOT657326.aspx

The design for the St Chamond 75mm field gun was initially created by Mexican small arms designer Manual Mondragon, who worked extensively in artillery as well as small arms. As Mexico had no domestic artillery production capability, he worked with the engineering team at St Chamond under Emile Rimailho to complete the design, and Mexico purchase 100 of these guns by 1910, forming the backbone of Mexican Army artillery during the period. The gun is a screw breech rapid fire piece, using fully self-contained ammunition (both shrapnel and HE projectiles). It fires a 12-16 pound shell at about 1650 fps, with a range of about 6500 meters.

In September 1914 the French government panic-ordered a batch of these guns, but then reconsidered and cancelled its order in favor of simplifying logistics with just the more common Mle 1897 75mm guns. That decision changed again in 1915, with an order for 200. These were not formally classified by the French Army, but St Chamond called them the Mle 1915. The gun was identical to the original Mexican pattern except revised to use the same ammunition as the Mle 1897 (the classic “French 75”) instead of its original slightly different cartridge. These guns were initially used for general field service, but pulled off the line when it became apparent that their recoil systems were not really able to handle the stresses of the constant firing required. Instead, they were used as the main armament for the initial 210 St Chamond heavy tanks (less the first 48 that did not receiver main guns). After these were used up, the Mle 1897 was used instead.

One final element of combat service for the guns took place in 1948, when Mexico sold 32 of them to Israel, where they were used in Israel’s war of independence. Three examples remain on display in Israeli museums today, more than anywhere else. The one I am looking at today is a Mexican contract piece made in 1904, registered in the US as a live and transferrable Destructive Device.