Ferric Chloride (Radio Shack) 5 second dip in etching solution. I use Laurel Mountain Forge.
These are from an 1899 L.C. Smith hammer gun.

I don't bring the finish up more than this on my old guns, just enough to show the pattern.

I use copper sulfate (stump remover from Lowe's) for Nitre bluing.

Last edited by JDW; 05/03/16 01:49 PM.
David