What action type are you searching for; hammer, or hammerless; type of lock (back action, bar action); type of barrels (Damascus or steel); original barrels, replacement barrels, or sleeved barrels; are you searching for a light game gun, pigeon gun, etc.; London guns only? I have actively shot Vintage events with a host of doubles but my favorites are a Woodward Hammer, Boss hammerless sidelever and Francotte. If you can provide some of the things you are searching for as above I would be pleased to put you in touch with folks who may have what you want and with whom I have dealt with and can vouch for their business practices. Available budget you have to work with would also be useful because as I am sure you already know, the price range based on your limited description can vary from a few thousand to well over $100K. Wishing you all the best in your search. Lyle