Up for sale is an Antique Vintage Bausch & Lomb Precision Refractometer Medical Instrument Device. Based on my research I believe this may be from the 1940's or 1950's....it's a fairly rare device from B & L. It's a HEAVY piece of equipment, it weighs approximately 25 pounds & the size is irregular but it's basic measurements are 21" x 15".
Chart recorder DR4501 120/240V, 24hr, Temperature, Single pen, Honeywell This is a single pen chart recorder made by Honeywell, part number DR4501-1000-00-000-0-00-0111. In good used condition with some tape residue along the bottom edge. The glass is somewhat loose.
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