Joyce Weems put out info on the Klaus Dern knifeholder, it is creme de
la creme, can be autoclaved (for those who use it in a cryostat), and
extremely sturdy. He makes them for other microtomes, not just the
Leitz/Leicas.  It is called the K-D knifeholder.  If John Tarpley
is listening in, he will attest to the quality of this holder.
Nice to know he is still in business.

Gayle Callis