The side plates even have 65 stamped under them. Also the screws have 65 etched into them. There is one 65 mark directly on the right barrel. The 65 which I think refers to 65mm is stamped on both barrel flats by the lugs.
The mark on the upper left of the barrel is the soldier. It is hard to see in pictures. It is a midevil looking soldier with a shield in his right hand while he is leaning on a sword held in his left hand. He has a frock hanging off him similar to the templer one you see in the movies with cross on it. There is no cross though on the soldier in the stamp. He has Qualite stamped to the left of him. Super Bure or Bore to the right of him. Agier Inexplosible below him and something that looks like depose above him. Here is a close up.
