You need to check the 21 prices a little more, eightbore. A 28 gauge in nice shape whether a collector or a shooter is going to cost a lot more than $10,000. The last Pigeon Grade I saw from the Custom Shop was going for $17,000 and I would say a 28 gauge would be worth a lot more if it is in excellent shape. And you really don't need documentation to buy or sell a 21 at a decent price. ......... Anyway, huntersdad, just because the gun doesn't letter doesn't mean it isn't original. I have eight 21s and I believe 3 don't letter. The 20 gauge I have, has a gap of three non-lettered guns on each side of it. Meaning were about six guns in a row that didn't letter during that run, according to Cody. Or the records were lost over the years. I'm just interested in how much the guy is asking and what the serial number is. And do all of the numbers match? But I guess you don't want to say. That's OK. And I wouldn't worry if the gun fit or not. Not too many people who buy guns like this are concerned if the gun fits. Keep in mind, too, that you can always ask Ed Ulrich and get his opinion. His e-mail address and phone number are in the DGJ. I have asked him questions over the years. Good luck.