The 'equinox' bowl was one of my very first pieces of glass....in frosted green, without any pictures on it still got it in my Art Deco glass collection.
Yours is the 'folded' version, but I have to be honest, I have yet to see two pieces with the same picture on, and I got the impression that they were put on by their owners rather than on the production line. I have seen some that look like handpainted flowers and others that look like transfers.
Does yours look as though the decoration was applied in the glassworks Chris?