I was wondering whether someone could help me with this one. The disc pictured is being claimed as WW2 Canadian and was found near the Dutch border (German side) last week by a guy with a metal-detector. I have posted my opinion on the forum that this disc is more likely to be British in origin and from the early 1950s. I'm basing this initially on the appearance of the disc but mainly on the service number. Due to the change (in 1950) to the army service number system, all new service numbers started at 2200000 so this number would have been used not long after that. OR.. The number was in use prior to 1942. In that case it belongs to a block of numbers allocated to the RE which makes it possible for the carrier to have been in the area in 1945. Incidentally I checked just in case and there is happily no death recorded under this number. Due to the lack of ID disc standardisation in WW2 it is possible that stainless steel round discs were in use so it is difficult to say 100% that this disc is post-1950 although my feeling says that it is. Am I making this too difficult and totally missing something obvious that would decide thigs one way or the other? I've seen the current canadian ID discs but can't find any pictures of the WW2 version. It would be great if they were shaped like, I don't know, trees or something - anything but round in fact! It would make things much easier I'd appreciate any help.