Early ones were nonselective, later ones selective. When we've had this discussion previously, I believe someone stated that the Sporter models (straight grip, smaller forend--probably best described as a semi-BT) all had selective triggers, after which a couple posters chimed in that they had Sporters with NSST.
The really nice ones were the BSS Sidelocks: all straight/splinter/DT. The 20's in particular have gone up in price quite a bit. With the exception of a few of the 12's, which had game scene, they were all scroll-engraved.
There was also a BSS Grade II, which was the boxlock gun but with nicer wood and a coin finished, game scene receiver. They're pretty rare, and asking prices are up in the vicinity of the sidelocks. Wish I'd bought a couple back when they were new!
Last edited by L. Brown; 01/08/11 09:56 AM.