Cogs in transition
Subtitle: selections from a mechanical sketchbook
By: [Rigby Graham]
Publisher: Cog Press
Published: 1963
Place of publication: Aylestone [Leicestershire]
Language: eng
Number of pages: 20
Subjects: Gearing
Notes: "This edition consists of about sixty copies"--Colophon.

"Privately produced for the Society of Private Printers"--p. [1]