NOS Matsumoku chrome ash tray covers that fit 1970s Telecaster bridges such as on the Greco TE-350 and Aria Teles. They fit the older longer top loader Matsumoku bridges only that are 91mm long and 76mm wide. They will not fit USA spec vintage ash tray style bridges. These are part of a large lot of NOS parts I imported from Japan and I figure they were factory replacement parts or left over from discontinued models.
They have never been mounted but do have noticeable wear, scratches and scuffs so look used and would look right on an aged vintage instrument.