Penman, Laurie,
Practical clock escapements /
Clock escapements
Laurie Penman.
- 248 pages : illustrations ; 25 cm
Includes bibliographical references (page 240) and index.
095232704X 9780952327042
Clocks and watches--Escapements.
Clocks and watches--Escapements.
Escapment Sciene Practical making Timekeeper (general)