Yeah, believe it or not they actually are toys. 22cal blank toys. The date is correct for this particular type, however there are earlier ones that date to the late 1800's. Solid cast metal. Mostly iron. Most found don't work but are sought after by collectors. I almost started collecting these but prices are getting high on them if functioning so I decided not to add to my safe with the real thing. Especially when prices are close to the real thing? $300??? Just didn't make sense to me.
You can see them on Ebay and get a good idea about prices. They can also be seen in distributor catalogs in the toy section. They made a huge number of them in many variations and eventually evolved into the 6 shooter cap guns of the 50's, 60's, and early 70's when they became plastic. The early ones (1880's) are vey cool and sometimes have major manufacturers motif's on them. Who manufactured them? I never got that far with them but I'm sure there were several toy companies that did. Likely the same companies that made metal toys of that period.
Value? Watch them on EBAY....You'll be amazed at what people pay for them now. Punch in Antique cap gun and have fun.