I must like to show my stupidity! AKA lack of knowledge.
When I review the Smith & Wesson standard catalog version 4, I notice that the 25 - 2 has the same price apparently from 1961 on into the 70s. Cannot see the value not being different.
I have an early 3 screw from approximately 1962. S-frame with diamond N Target grips. # 2233xx. Can't see how the value lines up with a mid 70 version. Please help me out here! Mine is not a collector, but a very nice grade shooter. Thanks!