Above: My lightfast test for J. Herbin Engre de Chine, Marron (brown). The left half of the sheet was the protected sheet. The right half of the sheet faded when exposed to light. See additional comments below. Click on the image to view an enlargement.

Many of you may recall my original post on J. Herbin India Inks. I expressed some concern about the cost for a small bottle (minute bottle actually) and wording in the company's description of this product. Specifically what bothered me was the statement that the ink had "great permanency of color."