Supplemental post, in lieu of inactivity due to laziness.
Here's a rare/exotic one:
It's a Dutch Beaumont M1871/88, made in 1878. Almost 130 years old. Shoots a black powder cartridge, 11.3mm x 50mm. Pretty huge. The rounds are five bucks a pop, so it doesn't see much shooting. The brown color is actually the type of "Bluing" they used on that rifle. It isn't rust.
Normally the barrel is about a foot longer (36 inches!) but somebody, probably over 100 years ago chopped off the end, cut the wood back to the ring, and put a new front sight on it. It's now a 24 inch.
Another cool thing, the rear adjustable sight is measured in "Paces" from the target, rather than meters or yards.
The Italian style magazine was added by the original manufacturer around 1890. (It's stamped) The M1871/88 was originally a one shot, bolt action, until they retrofitted them.
Neat gun with a neat history.