Orifice Set

Orifice Set

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Usage conditions apply
Wooden box with plaque on lid that reads "H.E.I. Standard Orifice Set / Calibrated by / National Bureau of Standards." A plaque inside the lid reads "AMERICAN INSTRUMENT COMPANY." Inside the box are 10 metal items of different sizes.
Currently not on view
Object Name
orifice set
American Instrument Company
overall: 7 1/2 in x 6 3/4 in x 3 in; 19.05 cm x 17.145 cm x 7.62 cm
ID Number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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