Richland went out of business in the 80s before the internet so info is little. Also 54 is very early and Italy was still digging out from the war. Lots of small makers. Quality was random. Best Info I found is Pietta. My guy at Taylors had no idea. Are there any letters stamped on frame or cylinder?I can't magnify the pics on my phone. Might be under the grip. Something like ASM, FIE, Might be bunched in a artsy way? One looks like a jumble of Gs and Ds or a small palm tree. All the parts should be close. Might need to do a little fitting.