Hi Steve
I have been into Powell's on my last trip to the UK and have a note of the serial numbers of the 10 shotguns that the MoS purchased.
I have been researching this matter for many years and have quite a bit of information. Some is from the National Archives in London, most is from personal visits to dealers/makers that still have records for this period - obviously this takes a fair bit of time, but is most enjoyable! Also, quite a a lot of retailers including department stores that had a gun or sports department have donated their archive to the local town or city Library/Archive facility. These are great to visit as its easy to get an appointment.
Regards
Alan
