I could easily go along with "PS" being the Prosper Schlemmer firm and they filed the frame and possibly fitted the action. There should be additional marks from the flats toward the forend lug. But the locks from tool steel and pin configuration seem Defourney or Dumoulin but all may have been getting their components for the same source. Being just pure speculation, I think there was reciprocity between Belgium & Prague & Wiepert. I haven't had the time to confirm but when I have time will look here: (copy & paste) http://en.wikipedia.org/wiki/Commission_Internationale_Permanente_pour_l'Epreuve_des_Armes_%C3%A0_Feu_Portatives (
http://www.cip-bp.org/ ). So assuming reciprocity, I can't see why there was final proof in Prague unless it was finished there. If it was peddled from Brno why did it have to pass thru the Prague proofhouse and not Weipert? I thought the new Czech state to be somewhat under the German's thumb(protectorate?) and there were other Belgian examples peddled in Prague or Weipert without import stamps. All bets are off of course if there wasn't an agreement or the Czech state wasn't a member.
Kind Regards,
Raimey
rse
