Here's one going now on the block. They are worth what the high bidder is willing to pay. "Rare" has alot of meanings, there were about 15,000 257 bob's made from 1937 to around 1959. Personally, I would like a pre war in the 257 which were less than 2,000 made.

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=265295800

Last edited by Cartod; 12/21/11.