Bach Mt.Vernon 1.1/4C trumpet mouthpiece For Sale

Here is 17.00mm 1.1/4C Mt.Vernon trumpet mouthpiece in very nice condition. This is an older model version perhaps late 50s early 60s. No nicks on the rim or cup. There are a few little marks here and there ( as shown in the pictures) which mean nothing towards the playability of this rare Mt. Vernon 1.1-4C comes with an original #28 throat and #10 back bore just the right size diameter, and the MV rim that is so sought after. This is a rare opportunity I had one listed yesterday and it sold. So I took this out of my second collection. I’m not using it , but perhaps you can . Shipping is free and international shipping is available. All Offers are welcome thanks so much.