The 444s are very nice clarinets - made in the hey-day of Conn. They seem to have a limited following and thus can be had for very little. A friend of mine (who doesn't play clarinet) has one in new-unused condition sitting in his closet.
They play realy nice with the big bore, but they apparently have a few intonation issues - i'm not sure whether it can be corrected or not as I have not had one in my hands for a complete overhaul - just for checks
They play realy nice with the big bore, but they apparently have a few intonation issues - i'm not sure whether it can be corrected or not as I have not had one in my hands for a complete overhaul - just for checks