Model 57 Question

[pmh-usa]

I have a Model 57 (no dash), recessed cylinder, pinned barrel in 4 inch blue. I was given to me as a gift (slightly used) It think in 1973. I still have the box - it has a target hammer, smooth target trigger, white-outline rear and red-ramp front. I would say 85% due to a little honest blue wear at the muzzle from being carried in a holster when hunting - there ar no metal scratches. There is a little wear and a couple of scratches on the original goncalves (smooth) grips. Serial number is N30903X. Can anyone tell me what year model this is, the market value of this gun, or at least what value I should insure it for?

 

[JCS&W]

Standard Catalog of Smith & Wesson shows that serial numbers:N300000 through N399999 were shipped 1975 - 1976, my guess, 1975. Market value is a guess, but I would say $675 to $850. I would insure it at $800, but that is just my opinion.