Clockmaker's company, Guildhall
Subtitle: MS 6026/1.
Contributors: Worshipful Company of Clockmakers.
Publisher: Micro Methods
Published: 1730
Place of publication: East Ardsley
Language: eng
Format: Microform
Notes: Untitled manuscript of the original design for the grid iron pendulum sea clock (longitude) by John Harrison of Barrow near Barton upon Humber, Lincolnshire, June 10 1730.