6 Corelle Coordinates Timber Shadows Tree Mugs 12 oz are white porcelain mugs featuring a unique tree design. These unisex adult mugs are part of the original Corelle collection, manufactured in China using pottery techniques. The mugs are not vintage and not signed, with a production period between 2010-2019. Each mug has a 12 oz capacity and is suitable for all occasions. 1- cup has a small chip in the glaze