Webley Service PCP, the only one ever made by John Walker of Hull.
Webley Service with Custom made Gas Ram, (not commissioned by me).
Webley Senior Co2, one of ten made by John Walker.
Webley Tempest in .25, one of three made at the factory.
Webley Junior No:1 (Batch number)
Webley Double Spring Clip Mk.1, Boxed.
BSA Centenary .22 No:2, boxed mint, first one ever sold.

That'll do for now.
I don't go looking for rarities in particular, but still manage to find a few.