I have a 3/38 dated BSW 16 ga s x s with the loaded chamber indicators that pop back out of the top of the "balls" of the action when loaded. It is a mid to upper grade gun, with more extensive coverage of engraving than the commonly seen BSW guns, and I have a 1/37 dated BSW 16 ga O/U gun with only the usual cocking indicators on the sides of the action. I also have a post war Simson branded gun dated 1/65 that has both loaded chamber indicators and cocking indicators. This gun has the modern elongated action style like the Merkels of the era, and a straight grip stock.