Chris,
I think you are right. If I remember, the Red Chalk or Sanguine was a special chalk that had a lot of iron oxide in it.
Were the Demachy prints in this color gums or photogravures? --
Best Wishes,
Mark Nelson
On May 22, 2009, at 8:10:22 PM, "Christina Z. Anderson" <zphoto@montana.net> wrote:
Henry, Try Venetian red, Indian red, or red ochre. It was a red iron oxide pigment if I remember correctly. One recipe calls for 3 g. Venetian red powder to 1/2 oz. gum. Another calls for a pigment called "light red" which I know was available about 10 yr ago anyway. But Venetian Red is a nice brick-y color that you'd be happy with. My notes say this: "For instance, a Venetian red or red ochre color was used to approximate the rust colored conte crayon portraits." Chris
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