The magnetic escapement
Subtitle: lecture given to a meeting of the Electrical Horology Group of the Antiquarian Society ... at the Science Museum ... 2nd December 1972.
Contributors: Antiquarian Horological Society. Electrical Horology Group.
Publisher: Antiquarian Horological Society Electrical Horology Group
Published: 1972
Place of publication: (Ticehurst, Sussex
Language: eng
Number of pages: 11
Notes: Cover title.

Title on spine: Electrical Horology Group pamphlets.