While on the subject of 1945/7 air guns. Just had a closer inspection of four Webley seniors post war models 1946/9. All with long knurled barrels,long curled triggers , oil with arrow etc.
Two of these, batch number 111 and 653. Under left hand grip is stamped 4111 and 4653 on the other one, like serial nos. the other two are stamped batch 190 and 960, under grips are stamped just the 190 and 960 only.Interesting. I wonder if someone like John mil.picks this up and could throw some light on the above.