Lots made it back. All of the Greek returns I had sported Britishicon commercial proofs on the barrels since they were sold by Charnwood Ordnance. None had any other Greek markings other than the odd stickers I mentioned before. The more i look at yours, the more I'm convinced it's a Greek or other European nation return.

I've never seen a C Mk.3 sight on a factory original 1943 Long Branch. There were two earlier stamped Canadianicon variants. One mismarked Mk.II and the other marked Mk.III that are original on some LB 1944-45 production rifles. I have two 1944 rifles with the mismarked variant and one 1945 with the latter. You can tell the Canadian made stamped sights because the base fits all the way across the body unlike the British ones that have a washer to fill the gap. CAL replaced the Mk.2 flip sights with the later C Mk.3 post 1950 if memory serves. They were standard on the 1949 and 1950 production rifles.

The cocking piece and bolt head are LB but is the bolt body? Maybe so or maybe not but it's still a legit replacement as done in an Armourer's workshop regardless.