The gun is marked V. Bernardelli and the barrels are indeed 21 and a half inches. I did not know they faked the sidelocks with pins as the only Bernardelli I knew had true sidelocks was the Holland Grade. This gun is beautifully crafted with double underbites and a Purdey hidden third fastener. I guess the only way to see if it is truly a sidelock would be to pull off one of the plates --- which I would not do. Thanks for your input. Chopperlump