Eric Hoeprich - clarinet virtuoso on period instruments, teacher, maker of his own period instruments, and author - brief beginning bio quoted below (see link for more) - astounding career. I recently purchased the two
Crusell CDs shown below (although I own other discs w/ him) - he plays his own personally made period reproduction clarinets on these recordings. Also, wrote the book
The Clarinet (Yale University Press, 2008) but is listed at a ridiculous price on Amazon - will do some searching - likely a good read from the comments on Amazon!
SO, if you're into classical clarinet music, especially played on period instruments (restored ones or reproductions), then Hoeprich is worth exploring. Dave

Eric Hoeprich is one of the world's leading exponents of the historical clarinet. He was born in Baltimore, MD, and has an honors degree in philosophy from Harvard. He teaches at the Paris Conservatoire, Indiana University’s Early Music Institute, and the Royal Conservatory in The Hague. For the past thirty years he has specialized in performing on the historical clarinet. His expertise as a musician, scholar, and instrument maker allows for a unique approach to the solo clarinet repertoire of the eighteenth and nineteenth centuries. (Source)

