These unique Magnets are from the Andy Rooney Fine Porcelain Enamels Collection. These nostalgic aviation signs are authentic reproductions . The colors are finely ground glass crystals which, when kiln fired at 1350 degrees fahreheit, fuse to the heavy 18 gauge steel plate. Each color is applied and fired separately creating a durable, lustrous and rust resistant product. Made in the USA. 6 different signs, sold separately. Buy 3 save 1.00 each