Gold Leaf Printing.
Gold leaf printing requires much more care than bronze printing, but if properly managed will be found to be a great improvement. Ink should be made of chrome yellow, mixed with Venice turpentine, virgin wax and varnish. Cut the gold leaf into slips a shade wider than the lines it is to cover, ink the form in the usual way, and pull a sheet; then lay on the gold leaf with no great harm. Some colors will not keep at all, and others deposit at the bottom of the can almost all their solid ingredients. It is not easy to alter this, but colza oil will at least prevent the surface skinning over.