Blaw Knox Company model ALC-4 atmospheric double drum dryer, shop number 305-24900, made in 1973, 2 each 6" diameter x 7-1/2" long hard chrome plated drums with 195 square inches of surface area per drum, unit has 2 each 9" wide mild steel scraper blades, 2 each Kadant Johnson SX rotary joints, Blaw Knox part number 16A04000, 300 PSI maximum pressure rating, 1/3 HP electric motor gearhead drive, 1725 RPM, wired 115/230/1/60, stainless steel contact, mild steel frame.