Note 60 — Instruments of Metal
Reading edition
"Frederick A. Heisely, Watch and Clockmaker and His Recorded Years, 1759-1839," Timepieces Quarterly (November 1948), vol. 1, no. 1, p. 33.
Reading edition
"Frederick A. Heisely, Watch and Clockmaker and His Recorded Years, 1759-1839," Timepieces Quarterly (November 1948), vol. 1, no. 1, p. 33.