I bought a well worn S&W Hand Ejector Model of 1905 revolver off gunbroker, and will be receiving it in the next week or so. From the photos it has practically no finish remaining:
It is a 2nd Change model.
It will see occasional range use with low powered ammo (cowboy or target loads). I wanted an old, long action S&W revolver.
Given its condition, I am leaning on refinishing with the rust blue process, but I am always hesitant on an old firearm to refinish - I know it depends on whether the gun has any collector or historical value.
Should I get a letter from S&W before proceeding? I'm sure there is a wide range of opinions on either preserving or refinishing, but I'm asking for ideas and reasons behind them.
What would you do?

It is a 2nd Change model.
It will see occasional range use with low powered ammo (cowboy or target loads). I wanted an old, long action S&W revolver.
Given its condition, I am leaning on refinishing with the rust blue process, but I am always hesitant on an old firearm to refinish - I know it depends on whether the gun has any collector or historical value.
Should I get a letter from S&W before proceeding? I'm sure there is a wide range of opinions on either preserving or refinishing, but I'm asking for ideas and reasons behind them.
What would you do?