Well I assume you mean a post war gun. Pre war guns are sought after. I also assume you mean a 2in barrel and blue.
I would say based on my assumptions, a plain detective special, $400 to $600. You may see them for over $600, but they will rarely sell for that much if 95% and without box. Be patient, many were made.
I think I got mine with over 500 rounds of factor ammo for $475 or something. The deals are out there.
Winchester 73, the TFL user that won the west