- 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
- See more items in
- Medicine and Science: Physical Sciences
- Data Source
- National Museum of American History
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.