I bought this kit, cheap, at a local flea market some time back. Like it states on the package, most of the work is done. There is a little inletting to be done, the browning and finishing, then assembly. I think I will put it together. I believe I will add a patchbox. Typical looking lock, huh? I don't see date codes or proof marks on the barrel only "made in Spain". The seller said he bought in in the seventies, and just never got around to putting it together.