So, I'd just like to reiterate how (relatively) easy this process would be for someone who already does carbon or other dichromated colloid processes. The result is a color picture that relies on diffraction, and thus cannot fade.

Quote, "The colours are extremely brilliant, and there is a peculiar fascination in the pictures, since, if the viewing apparatus be slowly turned so that its direction with reference to the light varies, the colours change in a most delightful manner, giving us, for example, green roses with red leaves, or blue roses with purple leaves, a feature which should appeal to the impressionists."