I had a chance 20 some years ago in Tombstone at the Film festival
to buy one of the 3 Rifleman rifles. It was a Win 1892 in .44-40 with
a 20" inch barrel, large hoop lever with a long Allen screw to trip the
trigger. The barrel was filthy from shooting 5 in 1 black powder blanks.
It also had a letter on letter head from the movie studio stating that
the rifle with corresponding s/n was one of the 3 rifles used in the TV
series. If I recall, there was another letter from Chuck Conners saying
that this was a Rifleman rifle.
I could afford the $2100 or $2500 they asked at the time, but I
asked myself do I want a famous gun to hold and have as a growing
in value as an investment or a shooter to enjoy.
I'm still looking for a pistol cartridge 1892 clone with a large hoop lever.