Not that both books could not be in error, but both the Blue Book and the Gun Trader's Guide list the silver NSST as being available on early production guns only and not on later ones, and never on Sporters (which were introduced 5 years after the standard BSS). Scwhing's book on the Superposed shows 2 photos of "the new Browning side by side"--not sure whether it's the same gun or not. Nor whether it was from the Browning catalog when the gun was first introduced. However, the gun has a NSST, and in one photo you can make out "Made in Japan" on the barrel, so it's not one of the later Korean-assembled guns.
I've certainly seen standard BSS with both SST and NSST, former gold and latter silver. But I can't recall ever having seen a Sporter with anything other than a SST--although I could be misremembering. The gun Chuck posted, however, is obviously an exception to that (assuming, per Replacement's post, that it started life as a Sporter).
Last edited by L. Brown; 05/25/10 12:23 PM.