Hi Brian,
I've got one of these cassettes. IIRC its 6sp 14-15-17-19-21-24, I may also have the locking ring that screws the whole thing onto the hub and the 'beer opener' to go with it. It used to be on my beloved Raleigh Banana. I also had a close ratio 13-18 cassette which was on the bike when it was stolen some eight years ago which is why I've still got this one. I havn't had the heart to just bin it. PM me your address and it's yours for the karma - just give me a day or two to dig it out.