Rainbow glass comes in two flavors. There is rainbow glass as made by the Rainbow Glass Company, and there is glass made to look like a rainbow by several companies. As far as I know there is no overlap; Rainbow Glass Company didn't make glass rainbows.
Rainbow-Glass.net is the website where we have started working on identification and valuation for Rainbow Glass Co. products. We have purchased some of their old catalogs and will be publishing those as soon as possible. We will also be adding pages with examples from our collection and current sales to help with the identification and valuation process.
Below is an example of how we plan to use sales of Rainbow glass to help with identification.
