That would be Zeiss/Microm 505E.
VENDOR ALERT!!!VENDOR ALERT!!!WHOOP, WHOOP VENDOR ALERT!!

Excellent instrument if I must say so myself.   It has a patented automatic 
cryo approach that allows the user to advance the tissue to the knife edge 
with a single touch of a button. It creates beautiful sections with either 
disposable or stainless blades.  

Rather than sound like a blatant sales pitch (Iknow how the histonetters 
frown on that) email me directly and I will put you in touch with the rep in 
your area.
Dawn Truscott, HT(ASCP)
Carl Zeiss, Inc.
Michigan Rep