I’ve just packed up the muzzle loading pistols today for the Trafalgar & there’s 2 stainless Rogers & Spencer revolvers in excellent condition, 1 looking virtually unfired. There’s also a nitro conversion example in stainless, more expensive but proofed for nitro powder so much easier to clean if that’s a consideration.
After a closer look I’m not sure if 1 is chromed rather than stainless steel.