I'm far from the authority on S&W collecting, but it would seem to me that when an object is known to be historically significant - and this one is, due to ownership, use, production order, etc. - you can't have too much provenance. Maybe a "Phil Scrapbook" to go with the revolver. A Jinks letter would be a logical addition, while they are still available.

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I need ammo, not a ride.