Trade lit for Partlow Corp., a maker of temperature recorder and controller system solutions. Two versions of the 1950 manual "The Design and Process Engineer's Guide to Industrial Temperature Measurement and Control thru Mercury-Bulb Instrumentation" (Partlow Bulletin No. 101) ; circa 1924 "Partlow Temperature Controls and Burner Equipment" ; circa 1940 booklet "Temperature controls & Recorders for Gas and Electric Appliances, Automatic Gas Burning Equipment , MAgnetic Shut-Off Valves , Electric Safelty Pilots , Dial Thermometers , Safety Gas Valves" ; an unbound group of circa 1933 and 1934 flyers for thermometers , gas valves , switches , temperature controls ; a group of circa 1934-1938 small booklets and brochures for electric or gas fuel temperature controls , dial thermometers , limit switches , motor operated valves ; a 1951 bulletin (no. 340) for temperature controls, Saf-T-Flame Gas Pilots , dial thermometers , limit controls , recorders and timers ; a pair of circa 1951-1952 bound bulletins for Partlow products.
