Up for bid is a Southern Maid Donut Coffee cup with “dunking club rules” on back. This belong to me and wish I had more because my Dad owned a shop in Bossier City, LA. I only kept one. I have never seen one since. It’s been in a glass case for years and never used. I filled it with water to see what capacity it holds and a line showed up. No chips, crazings or repairs. Just the stress line.