I have a .50cal Plainsman black powder rifle and had the same question. I found the 2 links below that show a gun that looks almost identical to mine and they each list CVA as the manufacture: http://www.gunsandammomag.com/cs/Satellite/IMO_GA/Gun_C/CVA+Plainsman http://www.auctionarms.com/search/printitem.cfm?ItemNum=8317215 I hope that helps.
In excellent condition (Like Brand New) it's worth $65 in poor condition it's worth $20. You did not state the condition of the rifle so I can not give you a closer estimate. It was made by Healthways Inc.
Want ad, gun shop, gun show, pawn shop
The duration of The Plainsman is 1.88 hours.
The Plainsman was created on 1936-11-16.
The Auburn Plainsman was created in 1893.
The duration of Law of the Plainsman is 1800.0 seconds.
Riverwind the Plainsman has 313 pages.
I have a copy. It is a very small manual 13 pages of 5x4 inches. The rifle was marketed in the US by COMB Inc. Just a guest answering here, but will watch and if you want to post an email address, I could send a copy. Will watch for future postings/questions.
Law of the Plainsman was created on 1959-10-01.
Law of the Plainsman ended on 1960-05-05.
Riverwind the Plainsman was created on 1990-03-31.
Plainsman - South Dakota - was created in 1886.