This is an interesting and fun little weapon--the Davide Pedersoli "Derringer Liegi". It's a .44 caliber black powder single-shot percussion pistol. You unscrew the barrel, fill a little cavity with black powder, sit the ball on top, screw the barrel back on, and fire it with a percussion cap. The trigger folds down when you cock the hammer.
This is a cool set that includes the pistol, a special wrench for removing the barrel (actually unnecessary unless you screw it on too tightly), and a fake "book" that fits the weapon. I bought this brand new about 10 years ago and I think I've fired it 5-10 times, cleaned it, oiled it, and stored it--so it's almost new.
I'm asking $225 for the pistol, wrench and book. For $250, I'll make this a complete set with most of a box of balls, most of a container of percussion caps, and most of a container of black powder pellets. FTF, cash only, need to see your DL and LTCH.
Possible trade interests: NAA Pug, S&W 642.
Here's a link to Pedersoli's info about the pistol: https://www.davide-pedersoli.com/sc...derringer-liegi-derringer-liegi-standard.html