I have a Derby and a Regent, both imported by American Arms. Look identical, the Derby is from 1993 and the Regent is from 1983 The Derby has a single trigger non selective, ejectors, cocking indicators, intercepting sears, straight stock, gas ports, 26" barrels with 3" chambers and checkered butts.
The Regent has the same configuration, except has the Churchill 25" barrels and rib. This gun has double triggers and a nice piece of oil finished wood.
These are made by Zabala.
Both are a 6 pin lock, one being a dummy pin. Both have coil mainsprings and both have coin finish receiver with roll stamped engraving. The one pictured looks to be hand engraved and is a lot higher grade than the ones below,but still not worth nearly that much. I paid under $400 for each from Cabela's also but in PA.
The one on the bottom, the barrels are 27 1/2". They are still available from Numrich, they are not proved and take quite some time to fit.