Al, sorry to hear about your mouthpiece bummer. Hope that the repair holds up. I've seen success with this type of repair in the past, so hopefully you will be ok.
My mouthpiece is an alto hard rubber Otto Link 7*. The logo is worn off of the top, but I can still make out the O, and from the angle of it's position, it seems to be a slant signature. I bought it new back in the '70s, and I've been playing it exclusively since 1980 or '81. So I'm very careful about how I handle it. My main concern is keeping the cork well greased so that the thing dosen't crack when I slide it onto the cork. My teeth will probably come through the top at some point, so I have too start checking around for a replacement.
James Carter has greedy eyes for a mint 10* metal Lawton that I own, and tells me that he's got a few nice old Links that may suit me. So I'll see what transpires.
Julian