This is a Howarth XL Synthetic Top joint in Delrin. It has a metal reed well, metal lined tenons, and is under two years old. It has been used sparingly as a second top and is in brand new condition. It has no serial number and does not come with a case.
This top joint fits all XL oboes of recent manufacture, likely within the last five years, perhaps longer. We are happy to ship the top joint on trial, or to have you visit us to give it a try with your lower joint and bell.