According to Indiana Glass researcher Craig Schenning, "These date to the late 1940s -1950s and were sold through Pitman Drietzer and made by Indiana Glass."
We have a PD ad from 1948 and one from the 1950 Sears Catalog. It is a 10-1/2†three-compartment grill plate with a square-bottomed cup and what the ad calls a rope-motif handle.
