What I have here is from Crawford & Whatley's book on W.C.Scott.
Four special versions of the Model 700 were designed for the American market. The Model 710, of which only nine were made from 1966 to 1970, was the top quality boxlock (Model 701) in 28 bore. Models 712 (12 bore), 720 (20 bore), and 728 (28 bore) were medium grade guns, recognizable by their distinct serial number: Model 712 (712201 to 712225), Model 720 (720000 to 720229, and Model 728 (728000 to 728215). A few Model 701 and 702 guns were numbered in special ranges during the later 1970's (701000 to 701028 and 702000 to 702048), but most were numbered in the 121000 through 146000 range.
Various other bits of non-relevant information then it comes to the last sentence in that chapter. 'The last double gun made by Webley & Scott was a 16 bore model 701 (No. 146243).'
The company was sold and re-formed as W.C.Scott in 1980. Lagopus.....