Receta Seein' Stars - Unknown Black Atomic Star Pattern??

But true to Corning Ware form, cause these things go in waves, a 1 3/4 quart size appeared on eBay less than a month later. I promptly purchased that one, so I could get a good look at one of these pieces. It proved to be unmarked on the bottom. No P-series mark, no embossing.... Nothing. Which makes even attempting to date it's production virtually impossible, other than "prior to 1972" because of the P-series sized handle lugs. (top piece)

Sadly, I lost an auction on a 1 quart sized piece last Tuesday. (Which is where this photo is from)

But as with most things, when one door closes, another opens. I became the owner of a 2 1/2 quart size piece just this morning, thanks to a fellow Facebook user with whom I worked…