Searching for Selmer Thévet Mouthpiece

I am looking for a Selmer Thévet horn mouthpiece like the one shown in the picture below to use with my Selmer Thévet double horn.

Please contact me at jring228@gmail.com if you have one you would be willing to sell.

Thanks!

Jonathan Ring

San Francisco Symphony

Image upload: 

Selmer Thévet Mouthpiece