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Discussion Starter · #1 ·
Howdy!!! I bought a model 66 with 4" barrel today, woohoo!! (My first pistol)
Anyway, I've determined that it was made in 1976. There are a bunch of other markings on it also. What do those signify? There is a circle with a T in it, a diamond with a N in it under the grip. Also, there is a "C9" and a "1C536" near the drum as well as under the grip.

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