A few words about Browning Salt guns; From 1967-1969, ANY Browning gun should be assumed to be a salt gun candidate. A silver nitrate test will tell for sure, but you can view the metal-wood abuttment areas and look for tell-tale rust. If the wood finish is VERY crazed, assume salt. If the gun has a buttplate, back the screws out and check for rust. If not, it only means the butt is salt free, not the wrist or forearm. These are all well accepted Rules of Thumb. Silver Nitrate is the "acid" test, pun intended.
As for the Superposed, I have read several times in a few forums, that if a Super is a Long Tang Round Knob, it is assumed to be Salt Free. Consensus is the Salt cured blanks all went to the "new" Short Tang and Flat Knob guns. I have a 1966 Pigeon, LTRK, that is salt free, even though it is considered to be in the beginning of the Salt Era.
Hope this helps.
