That's always nice. I wouldn't know, but I'm sure it is.
We have a late 1800s 16ga dbl-barrel. side-by-side. I've searched and found some like it online valued at $350.
I need to go through all our old collectors from a couple of P38s right from German soldiers from WWII that all the serial numbers match-up, to a Civil War Musket. Those P38s got cleaned by the Germans in an assembly line style as they passed them down the table, so the frame, slide, clip, etc...hardly ever ended up back with it's mates.