Ray, thanks for looking! That's what I'm saying - from what I've read, on the Higgins website, the Higgins started out in their own studio, then worked for Dearborn, and then returned to making glass in their own studio after a few years. The one's signed in gold are from the Dearborn years and the ones with etched signatures are from before and after Dearborn years - I think. If I've got that right, then how do I tell if my dish is pre-Dearborn years or post-Dearborn years?