4 are marked “oneida” and “China”. 2 Also have a “18/0” marking. They are NOT new or unused unless specified to be so. Look very carefully at the pictures.
The Association with Oneida: In 1983, Buffalo China was acquired by Oneida Ltd. Oneida retained the iconic Buffalo logo and the factory in Buffalo, New York, producing this heavy, durable vitrified china.
Oneida Hot Plate Trivet Grooved Inset Great Design for Holding Containers in Place. This is an older Style bowl pan dish Trivet and uniquely Rare. It has 4 feet on bottom to help prevent sliding. Believe it is made from High Density Polyethylene HDPE (most Plastic Cutting Board material).