Manuscripts
Working drawings for polygraph machine and other devices
- Description
Autograph manuscripts, pen and ink. Three diagrams. Polygraph drawing includes notes. The other two drawings are possibly for a leaf spring for a carriage and a double-locking mechanism for a casement door at Monticello. (3 pages)
- Date
- approximately 1803
- Call number
- HM 9395
- Provenance
- Purchased from American Art Association, 1920, 1921.
- Purchased from Anderson Galleries, 1915-1920.
- Purchased from Maggs Bros. 1916, 1918.
- Purchased from George D. Smith,
- Restrictions
- RESTRICTED. Available with curatorial approval. Requires extended retrieval and delivery time.

