If you're a collector of Bicentennial items or just want to keep some food warm, here's a nice tray to use!  This Atlantic Precision Works Warm-o-Tray has a golden eagle at its center surrounded by 13 gold stars for the original colonies, and the 13-star American flag.  Above the eagle is printed "E Pluribus Unum," and below it says "Bicentennial Commemorative", "1776" and 

"United States of America."  The tray measures about 11 x 17"; the heated surface minus handles is about 15 3/4".  It stands 

1 1/2" tall.  It is UL listed at 100 W/ 115 V.  The cord is about 52" long.  I tried it out, and it gets nice and hot in a relatively short time.  Overall condition is very nice with just some scratches/marks from prior use.  Please see all photos.