I have three old laboratory mercury-in-glass thermometers and I wish I knew more about them, such as how old they are. I got them from my grandfather about 35 years ago. Don’t know if they are in original containers.
One is in a cardboard box about 17" by 1" wide by 3/4" deep, and the box says NURNBERG’S THERMOMETERS, TYPE 76 mm Immersion, RANGE 5-400C (the specifics are handwritten in ink). The thermometer says Nurnberg Brooklyn NY, and “76 mm Immersion”, and has markings engraved and filled with some black ink or paint. There is a small glass loop at the top end as if to hang it, and an immersion line, and the numbers and scales. The background is white.
Another is in a wooden tube with a telescoping wooden cap. Both tube and cap appear turned from solid wood. A silver label with black ink says AMINCO (in a diamond logo) American Instrument Co., Inc., Washington, D.C. THERMOMETER, TYPE CHEMICAL RANGE -10 TO 150 C IMMERSION TOTAL SUB. DIV. (blank) CAT. NO. 2-122. The thermometer itself is much like the first one I described, except the range is -10 to 150, and there is of course no immersion mark, and there is a capital P engraved just past the end of the scale. On the back it says AMINCO 4750.
The third is in a similar but unmarked wooden tube. The thermometer is also -10 to 150 but with an immersion line. On the back it says 76MM IMMERSION E&A U.S.A. NITROGEN FILLED.
Any information is much appreciated.