This mouthiece (got it today) is one of Freddie's earlier models, serial number 0159 and Made in England. I have not been able to record a clip yet, but I can say it sounds mellow but has something to offer on the treble side as well. It's not stuffy nor dull at all. What I would like those "Freddie experts" to tell me is which model this might be. It's clear that it's a 7*, you can read that, but ligatures have taken off the engraving of the top. Did Freddie use a classification like in his later mouthieces at that point (i.e. Mark I, II, III, IV)? If he did, this might indeed be a Mark II or Mark I because of the fact the sloping baffle does not show any sign of a step at all. Maybe you can have a look at the pics and tell me which model you think this one might be. BTW, I love it from the start. Window and rails are not as massive as on a vintage Link, the rails rather remind me of a Guardala because they are quite slim.