RLI:
There is a Webley & Scott catalogue on the web, courtesy of our Viking bretheren, which has a reasonable introduction to the firm. As far as A&D boxlocks go, they were pushing the screw-grip in three grades in that catalogue, plus a bunch of cross-bolted guns like the Reliance etc. I believe its the 700 which is often illustrated in other texts, such as Boothroyd's 'Sidelocks & Boxlocks' (page 140) and the Parker Hale catalogues. A friend of mine here in Darwin has one, and likes it a lot. No doubt others here will have more to add, hopefully first-hand.