Terry, not knowing condition other than well used....I've watched them sell from $400.00 up to about $800.00....nicer ones not run hard usually sell up into the fifteen hundreds or so and everywhere in between......
Just watched a nice Field Regular Frame 16 made in 1898 with lot's of color and great wood with 30" bbls sell for $1985.00....all original and uncut.....no pad, M/F etc.
When you say well used, that usually means cracked wood behind the lock plates, some barrel dents and whatever else....?
Good Luck with it...
Best,
