Rotary; automatic; refrigerated; 120/230 volt; 50/60 hz ac; mounted on 4 casters; two of which lock; w/compressor capable of maintaining a selected knife temperature of 0 to -20 degrees c 24 hours a day for an indefinite period of time; feed mechanism of 2-40 microns; automatic defrosting; quick freeze timer and interior cabinet temperature readout with low of -28 degrees c; microtome includes automatic feed w/min range of 2 to 40 microns, 120 mm knife, three specimen holders, anti-roll device and lubricant; for use in preparing large or small, thin unwrinkled sections of single or multiple pieces of fresh frozen tissue in military surgical pathology laboratories