An electronically maintained precision pendulum clock
Subtitle: notes describing the theory of the èscapement` and practical details of the pendulum.
Contributors: Antiquarian Horological Society. Electrical Horology Group.
Publisher: Antiquarian Horological Society Electrical Horology Group
Published: 1973
Place of publication: (Ticehurst, Sussex
Language: eng
Notes: Cover title.

Title on spine: Electrical Horology Group pamphlets.