Interesting ... The finish is clearly different than the others and the colour is more of a nickel tone. The ridges on the sides and detail on both sides is there, so it hasn't been dipped in anything. Not sure this could have been accomplished with a buffing. I do suspect it was obtained in 1965 with the others and must be an issued piece.
Hopefully someone else has come across something similar and can offer more info.
Hopefully someone else has come across something similar and can offer more info.





















