Martin, I got the contracts, with other paper, at an auction. All very interesting. For example, the Osborn contract with WR requires the guns Osborn is building with WR patent [s] to be brought by in the white, fully functional with barrels fitted, but I think no stocks. WR would then inspect them and mark them with the patent and consecutive "Use Numbers" when approved. The contracts also contain a WR contract with Harrington and Richardson in the U.S. giving them exclusive rights to produce the A and D action in the U. S. If my memory is correct this covered about the first 5 years of the 1880s. By the way, the first contract with Anson and Deeley and Westley Richards, dated 1876 specified quarterly payments of 15 shillings per gun or rifle using the patent. Here's a picture of some of them.


http://www.bakercollectors.com/