milliammeter converted from pyrovolter
Date: 1929
Inventory Number: 2003-1-0036
Classification: Ammeter
Subject:
Maker: Pyrolectric Instrument Company (founded 1916)
Cultural Region:
Place of Origin:
Dimensions:
closed: 26.8 × 25.7 × 14.8 cm (10 9/16 × 10 1/8 × 5 13/16 in.)
Material:
Accessories: Storage box
Description:
Originally the meter was calibrated for degrees Fahrenheit and was changed to milliamp calibration of 0 to 24 milliamps. There is now a paper scale over the original one and the word "Fahrenheit" has been crossed out and "M.A." written under it. Mirrored meter. Square box.
In black paint on switch in upper left corner: "Do not use."
In black paint on switch in upper left corner: "Do not use."
Signedon label: MADE BY /PYROLECTRIC INSTRUMENT CO. / EASTON, PA. U. S. A.
on calibration chart inside case: 8-22-29
on calibration chart inside case: 8-22-29
Inscribedon lower face: 779
hidden by face plate and written on scale plate: Type DP No 779
hidden by face plate and written on scale plate: Type DP No 779