Gentlemen,
just recently I received a 1905 made Westley Richards shotgun with detachable locks ("droplocks") in its original case with all accessories. The gun has an unique history and will be presented in detail later.
Meanwhile, I have a question regarding an accessory I haven't seen before. This is a tin box containing a pad originally impregnated with "Selvyt". Obviously, the box/pad is for cleaning the locks. I'm also aware of the Selvyt company and the Selvyt products.

Question: has anybody seen before such a tin box for the Westley Richard with droplocks? If so: did the design change over the years?
Thanks in advance.
Regards
Martin