Depending if no rust pitting, good blueing, box and papers they will actually bring MORE then a Mk III at auction. I would not hesitate to pay as much as a new Mk III for one, if I was looking. Thank goodness I got mine when I did, they are much better then Mk III models IMHO. I saw a NIB 4.5" Standard sell at gun show for $300 back in the spring and if guy would have passed I was standing behind him ready to pounce. I would like another one so as each grandson would have one someday.