- Objects: perpetual motion machine 1 page Dimensions: 18.3 cm x 18.4 cm (7-3/16" x 7-1/4") Original manuscript from the Coolidge Collection of Thomas Jefferson Manuscripts, Massachusetts Historical Society. CONDITION: assorted stains scattered throughout sheet (on both sides), two horizo...
- Massachusetts Historical Society
- Redheffer, Charles (?) or Robert Patterson (?)