This is pretty rare item, I believe. I have had it over 15 years and had been around awhile then. It was made after 1982 because it has that date with picture of Columbia STS III. It is a 10" diameter plate and has interesting Tularosa information on the back of the plate. It was made at Kettlesprings Kiln in Alliance, Ohio and has a number on back, 3320-S,
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