I would love to have a replica of that one.
E. H. COLLIER, Nov. 24, 1818 patented flintlock-revolver,
5-shot, gas-sealed, hand-revolved.
According to Sutherland's book Sam Colt bought one in
London, and he developed out of this model the single
action system = by cocking the hammer the cylinder turns.
The revolver I bought Sep. 16, 1979, is part of my
collection and not for sale.