I have a Model 10 that was re-finished by Smith and Wesson in a Matte Blue finish that looks just like yours. A friend of mine bought the revolver as a police surplus, the finish was badly worn and pitted. Smith and Wesson reccomended the matte blue as they said they couldn't polish the revolver enough to make it look good in a gloss blue. It came out very nice, gave the old girl new life...

The re-finish cost was $170. When my buddy tired of the revolver, he sold it to me, and I am giving it a good home.