I have a nice Casull's improvement Freedom Arms revolver in .22 LR. I have only seen one other of the same type in decades of going to gunshows and gunshops. I bought the gun new in 1984 and it is a small framed (very small) .22 LR five shot stainless steel gun, single action. It was carried, but kept in a wool half sock and well oiled, so it is in like-new condition. It is similar to the NAA mini revolver.
The problem with the gun is you have to carry it with the hammer on an empty cylinder for safety, making it a 4 shooter. The stainless steel might be soft (stainless was not very durable for guns in the early 80's) as there is a small indentation on the hammer face from hitting the firing pin, despite limited use. I would shoot it once every 2-3 years, putting around 15 rounds through it per visit, on average.
I thought it would be worth alot of money over time but the other one I saw was only going for $140.00, but that was 20 years ago.
I checked some of the online gun auctions and man, there are some rare Casull guns fetching big bucks out there. A rare Casull model CA-2000 was going for $850.00 and a rifle for $15,000.00.
Was thinking of selling it as my new NAA mini revolver holds 5 shots of .22 mag. more safely. Does anyone else have a gun like this?