Gleikhait B♭ Clarinet Mouthpiece B7-1

This is a Glaesel clarinet mouthpiece made in Vienna.
I purchased it directly imported as a B-stock item last summer.
Purchased for €124.92.

Material: Standard
Bore: B-442 Hz
Choose your mouthpiece: B7-1

Facing: 22mm Opening: 1.14

I tried it once and then kept it at home.
As it is a B-stock item, there are faint scratches on the front (the side where the teeth touch).

I believe the specifications are similar to Vandoren's BD5.