Yesterday I picked up an 1858 from my RFD that I bought from a guy on another forum. It had been advertised as an Uberti 1858. When I got it home I realised that it had no makers name, but one of the stamps is a diamond with FAP inside. Some googling later leads me to think that this is a Pietta marking.

I'm not too bothered that it's a Pietta as I paid very little for it, but want to make sure I'm right in my assumptions in case I need to buy spares. What do you guys think?