Originally Posted by
Steve M1911A1
It's the original "Saturday-night special," a relatively cheap, Belgian, pinfire, double-action revolver from the 1870s. Yes, some people call these guns "muff pistols," because some, um, ladies carried them in muff (fur hand-warmer) pockets.
There are proofmarks on the right side of its barrel. Look up "Belgian proofmarks" on the internet. That may help you narrow-down where it was made (Liege?) and proofed.
Open the loading gate, on the right side, at the rear end of its cylinder. Rotate the cylinder with your fingers, and make absolutely certain that there are no old cartridges inside it. Use the extractor push-rod at the front of the cylinder. Push it through each cylinder chamber, to make sure that each is empty.
Now you can safely check its function, to see of the mechanism works. Be very gentle. Go very slowly.
If nothing moves easily, carefully remove its wood grip-panels, soak the gun in penetrating oil, let it sit for a day or so, and try again.
Pulling the unfolded trigger should cause the hammer to move, and the cylinder to revolve. Go slowly. Be gentle.
Thumbing the hammer's spur should revolve the cylinder and move the trigger. At the end of its travel, the hammer should catch on an internal part, and should not move forward again until the trigger is pulled. Try this gently.
Do not disassemble this gun. You will lose internal parts. There still are gunsmiths in the Netherlands, I believe, so let an expert take it apart if that is necessary. (If you are an expert mechanic, or a mechanical engineer, disregard that last instruction.)
To clean it, use no abrasives at all. You may use a cylindrical brass-bristle brush to clean inside its barrel and its cylinder bores, with plenty of oil. Push tight-fitting cotton or linen patches through all of the bores and the barrel, to get the remaining dirt out.
Now, use a micrometer caliper to measure the diameter of the barrel's bore, and also the cylinder's holes. That will give you an idea of its caliber.
You can still buy pinfire cartridges, maybe including some that will fit this gun.
Resist that temptation. Do not fire it.
It is very old and it was cheap, so it is probably quite weak.