This is a set of two used Hartstone coffee mugs, hand-painted and signed. The mugs feature a Christmas theme with pine trees and Santa Claus. They are made of stoneware and were manufactured in the United States between 2000 and 2009. The multicolor design adds to their collectible value. 12 OZ super nice. One has a Santa. The other birds. Thick solid. No chips or cracks. Clean