Husqvarna 98 FN actions I've seen that are C ring were based on the military FN action - not the commercial H ring FN introduced in 1948 that were used for the later Husqvarna rifles. They had thumb cuts, clip slots, military type floorplate release, two stage trigger and regular Mauser wing safety. These were the model 640 and were made prewar and early postwar, I think. The model 640 was also made on small ring 96 actions without the thumbcut and commercial 98 actions without the thumbcut. I've also read that these were actually produced by Husqvarna under some arrangement with FN, but I don't know if that is correct. I didn't think they had FN marking or Belgian proof, but could be wrong.