You might try David Lewis in Callander, Ontario. Besides supplying
custom stag-foot brushes and other bromoil materials, he's soon to be
offering colored bromoil inks as well. His book, "The Art of Bromoil and
Transfer", is very helpful if you're looking for further technical
information. Here's his email address if you're interested:
dlewis@onlink.net
Best,
John
John Barnier
12560 Morris Trail North
Marine on St. Croix, Minnesota 55047
USA
jb@dgi.net