mdengraver
~ Elite 1000 Member ~
A Jewelers Guide to Liver of Sulphur Patinas and Finishes
http://www.cooltools.us/v/vspfiles/..._artists_guide_to_liver_of_sulfur_patinas.pdf
http://www.cooltools.us/v/vspfiles/..._artists_guide_to_liver_of_sulfur_patinas.pdf