I'm new on this list. I'm a Norwegian Webley air pistol collector.
Here is my batch number list. Hope this can be usefull.

Junior MkII Batch no 707
Junior Batch no 89
Junior Batch no 269
Junior Batch no 270
Junior Batch no 3256
Junior Batch no 335
Junior Batch no 577
Junior Batch no 744
Mark I post-war Batch no 218
Mark I post-war Batch no 1006
Mark I post-war Batch no 1649
Mark I post-war Batch no 2019
Mark I post-war Batch no 2479
Premier F Batch no
Premier D Batch no 94
Premier F Batch no 212
Premier E Batch no 456
Premier B Batch no 622
Premier A Batch no 969
Premier D Batch no 2436
Premier Mark II Batch no 749 - 1554
Senior Post-WW2 Batch no 138
Senior Post-WW2 Batch no 418
Senior Post-WW2 Batch no 820

Regard Kopper