2.5 hours of videotape documenting a succession of clock escapements invented by Richard F. Bond in the 19th century. Bond's invention was called isodynamic escapement.
1 series: 5 items (original videotapes only).
Related Archival Materials:
Two of the three regulators videotaped are located in the Division of the History of Technology collections (now Division of Medicine and Science).
Made for the national Museum of American History, December 17, 1997.
Collection is open for research but the original videos are stored off-site and special arrangements must be made to work with it. Some oral histories are restricted Contact the Archives Center for information at firstname.lastname@example.org or 202-633-3270.