Investarms of Italy
Can't be answered without a detailed description of ALL markings.
such black powder revolvers are anywhere from $150 - $250, depending on condition
black power or cartridge rounds? Colt made the first "practical" revolver, so this was the first commercially successful cartridge revolver. I can't say about black powder... but you should read this: http://en.wikipedia.org/wiki/Revolver <><><> The first Colt revolvers were black powder handguns. The self contained cartridge was invented later.
no
metal
Absolutely. Lou Imperato was the reason Colt got back into the black powder handgun business. He was a large Colt distributor and had also purchased Iver Johnson Arms, and he convinced Colt to import rough case frames and major parts from Italy and complete manufacture was done at the Iver Johnson factory. All F-series Colt Black Powder revolvers were manufactured at Iver Johnson.
There are dozens of brands of .32 S&W cartridges, but I would strongly suggest that you have your revolver examined by a gunsmith that has knowledge of older revolvers before shooting ANYTHING in it. Early .32 revolvers (including some of the Forehand & Wadsworth guns) were made for BLACK POWDER cartridges- and while the .32 S&W is not a powerhouse of a cartridge, some of the older revolvers were not meant to use modern ammunition which is loaded with smokeless powder, and has much higher pressures.
No
Spain
Black powder was made of a mixture of charcoal, sulfur and saltpeter (Potassium Nitrate)
from explosive and flamable stuff such as black powder