This is a trumpet/cornet bell mandrel Allied #T1438. It is 20 3/4 inches (52.7 cm) long. It has a lot of surface rust that will need to be cleaned up.

The shipping calculator sometimes charges too much. If it is over by more than a few dollars, I will give you a refund for shipping. Also, if you purchase more than one item, I will send them together to save you money.