[John Sabato]

Welcome to the Lugerforum.

Rust blue would be the appropriate finish, and all supplies would be available from Brownell's, Inc. (try brownells.com)

You are looking at a considerable investment in time, patience, and labor... If it is a labor of love, then you will find the time well spent, but if you just want to refinish the gun to sell it, I would recommend that you have it professionally done. We have a member "Thor" who does this professionally, but the last time I heard, he was not accepting international work because of the all the customs red tape... so you should look for a good gunsmith in Argentina who has a good reputation for rust blue finishes...