cain posted:So its a tinin cup you talkin bout.
Long before me used tin or aluminum cups, we took enamel cups for the school milk/cookies breakfast feeding program. I believe it was a US Aid program with two hands shaking each other on the large powder milk bag.
Pieces of the enamel would flake off if the cup is dropped or hit a hard surface. The enamel coated the metal design of the cup and plate. The cup is usually useable, but it will have flakes of enamel off the cup.