That Bayard on Gunbroker is virtually identical to mine; same condition but I can't quite see the engraving, mine has a setter dog on the lock plates. I only paid 70 so looks like I got a bargin there. I have also some MGM French made 24 bore ammo but have no idea if it is still made there. There was only one chamber length but two types of cartridge; some with a normal thin rim and some with a thick rim. I have both types of cartridge in my collection. A thin rim gun will not close on a thick rimmed cartridge and a thick rimmed gun won't fire the normal round unless pointed straight up as the firing pin won't always reach. If you are offered a 24 bore it's worth checking what type it is. If thick rimmed you can always turn an insert to solder into the chamber so that it accepts the normal stuff but it is something to watch out for. Lagopus.....
