Purple Progress- comparing 3 purple fountain pen inks!

I show and talk about 3 purple fountain pen inks. This is part of my study of 10 purple ink samples. Today's shades are: J.Herbin Amethyste d. l'Oural, Diamine Amazing Amethyst, and Diamine Imperial Purple. I purchased 9 of the samples from The Goulet Pen Company and one was given to me as part of a contest I won recently!