Dig, the 1900 Catalog offers the sidelocks in three qualities. The exact one you mentioned above [same price] and the two additional ones I mentioned above in lesser prices. The same catalog lists the highest and lowest prices for the boxlocks as you list them. [same as in 1903] Graham Greener's book show estimates that from 1900 to WW1, Greener made around 4000 sidelocks. Is it possible that your catalog is incomplete ? Or, are you saying that for 1903 Greener dumped the Royal and Best sidelocks and did not offer anything but L3. Imperial Grade sidelock ? Then shortly after they reinstalled the offerings of L2. Royal and and L1. Best Quality [catalog's designation] like shown in the 1900 catalog ? By the way, I think the highest grade hammer gun was offered at 73 pound 10 shillings , the same as the boxlock and sidelock highest.

Normally, I would not comment on the bbs on errors such as this, but since you had asked for error imput, I did. I do appreciate each and every person who goes to the trouble to write books on our favorite subject.