Parallel rule with protractor and plotting scale. Three metal pieces. Top piece: two flat metal bars, each with a hook at one end, connected by two small bolts. A semicircle on top connected to a moveable arm with a small silver ring. The semicircle has degree markings. Bottom piece: straight edge ruler with evenly spaced lines and numbers. Background is white. Image is in black and white. Made by Lebbeus Dod.
Artwork details
- Date:
- 1796
- Medium:
- Brass, wood
- Culture:
- American
- Dimensions:
- 600 × 474 px
- Museum record:
- View original
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