J.Hensel
I find this interesting. You had an issued Model 67 in the Air Force? I served 24 consecutive months in SEA from 1970-1972. Most of us were carrying Model 15s and I never saw a single stainless revolver in Air Force inventory over there during that time. I'm not saying it isn't possible, and maybe you did carry a Model 67. But it is news to me that the AF had any of them.
They were introduced in 1972, and the AF had a large inventory of the Model 15 (at least two variants), so it seems a bit odd that they would buy any of the new stainless versions when the war was winding down.
Jack