Yes kai, this is a plate from a M-1915 155mm marine canon made in Saint Chamont in 1917. Saint Chamont is near Saint Etienne (a famous city for weapons craftmanship. The Name Homecourt is derived from a company in Lorraine that moved away to saint Chamont after 1870 to get strategic factories further from the German border. The Saint Chamont was also used on land , for example in the battle of Artois . Of course they were still in use in 1940 and many were reused by the Germans on the Ostfront . https://fr.wikipedia.org/wiki/Canon_de_155_mm_C_Saint-Chamond Yours certainly comes from the finnish army as they were used by the finns during the winter war and in use in the finnish army until 1962. "The St Chamond howitzer was in service at the start of WW2, the Wehrmacht captured 200 of these howitzers after the fall of France and designated them as the 15,5cm sFH 415(f). The captured howitzers were mostly used as coastal defence guns. Finland bought 24 St Chamond howitzers in 1939 from France but these arrived too late for the Winter War but served in the Continuation War from 1941-45 as the 155 H/15 Heavy Howitzer. All 24 St Chamond howitzers survived WW2 and were on strength in the Finnish Army until 1962" http://www.landships.info/landships/artillery_articles/Canon_155_St_Chamond.html
Talking about a coincidience. I picked up this amazing French Howlitzer 155mm Shellcase yesterday and just relaised it was dated 1915 and therfore was used with the Saint Chamont canon ! The artwork is about Egypt ( oasis, camel, pharoo, sphynx , pyramids, osiris, anubis etc....) so the sailor who mad eit was possibly based at Port Saïd wher ethe French had bases with the British to protect the Suez canal . .I'm not certain the" S" code is Saint Chamont or Schneider .
