❤️ RARE 1st Prototype CORNING BLACK OPTIC 10-oz Cup MUG "Microwave OK"
Brand New ~ Rare Find!
Rare, 1st prototype for the Corelle Black Optic pattern. The staggered black keys in the pattern were stretched on the prototype. I also have several of the prototype Lunch Plates and Bowls on early Comcor material, before putting the pattern on regular Corelle. Rare Find!
1 Comcor Tableware by Corning
Black Optic Prototype
10-oz Mug
3 3/4" tall x 3 1/4" dia.
Break and chip resistant
Scratch and stain resistant
Microwave, dishwasher & oven safe
Made in the USA
