True story, a number of years ago I had a friend who ran a booth at a local gunshow. AN older gentleman walks up with a 16 gauge Model 21 wanting to sell. At the time of this event doubles were selling for big money including anything Model 21's.
I can't recall the asking price but it was like half of what they were selling for at the time. My friend immediately took him up on the deal. As my friend was turning away to put the gun up the older gentleman said, "I'll just go out to the car and get the other set of barrels for you". My friend had hit the jack pot!
A number of years later my friend was coming home from a show and his trunk flew open throwing the Model 21 in the middle of the interstate breaking the stock in half.
I ended up selling it for him to a guy out west who as far as I know pieced it all back together