Sold for:
$646
$646
Aaron D. Crane's Patent Model and Label for Patent #12,196, dated 1855, for Improvement in Torsion Pendulums for Timepieces constructed by Crane using parts reworked from a three ball production pendulum and now mounted in a plexi-glass holder together with a bi-metalic three ball torsion pendulum and period reverse painted glass. Literature: This patent model is illustrated and discussed in Shelley, NAWCC Bulletin Supplement #16 pages 25 and 34.
Auctioneer:
Skinner
Date:
2007-02-18
