There are restrictions for re-using this image. For more information, visit the Smithsonian's Terms of Use page .
International media Interoperability Framework
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.
- Hawthorn's Mechanics' Slide Rule, Front View (Open)
- Hawthorn's Mechanics' Slide Rule, Back View (Open)
- Hawthorn's Mechanics' Slide Rule, Detail of Hinge
- Hawthorn's Mechanics' Slide Rule, Back View
- Hawthorn's Mechanics' Slide Rule, Front View
- Hawthorn's Mechanics' Slide Rule, Front View (Closed)
- Hawthorn's Mechanics' Slide Rule, Back View (Closed)
- Hawthorn's Mechanics' Slide Rule, Closed and Folded
-
-
- Hawthorn's Mechanics' Slide Rule, Closed and Folded
-