Let’s start by saying my method of creating orotones is not “historically correct”. Or at least, I’m not making them the way they were made in the 1920’s, 1930’s ……. My methods involve using materials that are readily available now, and materials that I have found easy to work with (and I have no doubt that had gold spray paint been available in 1920, it would have been used vs the various concoctions that were popular then).

Essentially, an orotone is a positive image on glass, backed with “gold”, as in the color, not the chemical element (Au), and I think that’s really the only criteria.

My first try at a multicolor cyanotype