Vintage advertising airguide temperature and relative humidity instrument. Advertises schroeder motor sales in oak grove il. The case is is in good shape given age. Glass shows some wear. About 4 x 7 3/4 x 2.
I have over one thousand happy customers on my clocks with many. All my clocks come with a. If [...]
Posts tagged relative
VINTAGE ADVERTISING AIRGUIDE TEMPERATURE AND RELATIVE HUMIDITY INSTRUMENT 5M
Antique Lloyd’s Hygrodeik Relative Humidity Instrument, A. E. Covelle Co. Boston
Antique lloyd’s hygrodeik measures relative humidity. Dew points with wet and dry bulbs using charts measuring high and [...]
Antique 1902 Tycos Lloyd’s Hygrodeik Relative Humidity Scientific Instrument
We are pleased to offer this exceptionally well preserved. Lloyd’s hygrodeik by tycos, rochester. Made in the early 20th century, for andrew j. A hygrodeik measures relative humidity, with wet and dry thermometers, and an index arm [...]
Antique 1902 Tycos Lloyd’s Hygrodeik Relative Humidity Scientific Instrument
We are pleased to offer this exceptionally well preserved. Lloyd’s hygrodeik by tycos, rochester. Made in the early 20th century, for [...]