Anyone who served in Cyprus during the 70's invasion period will agree that the Greeks were pretty good at maintaining their weapons but the Turks weapons weren't in ....... how do we say this politely.............. not in the best conditions that you'd expect to find them. They had a real mish mash too. They seemed to lack things, like ability to clean, oil and maintain!
On Brians mixed up serial number, I remember a LB Mk1* rifle having an indistinct LB number that had been F/FTR in the early 50's being numbered with a BSA R-35xxx prefix serial number, from its FTR days. The person still owns it! At the rear of the receiver body it also had engraved 'FOR FACTORY DEFENCE USE ONLY'