TY  - BOOK
ED  - Keystone.
TI  - Watch and clock escapements: a complete study in theory and practice of the lever, cylinder and chronometer escapements, together with a brief account of the origin and evolution of the escapement in horology. 
PY  - 1904///
CY  - Philadelphia
PB  - Published by the Keystone
KW  - Clocks and watches
KW  - Escapements
KW  - fast
KW  - Escapment Science
KW  - USA
KW  - Chronometer lever cylinder drawing geometry escapement
KW  - Textbook oscillator escapement anchor/lever detached/free watch theory technical practical
KW  - Anonymous
KW  - Pocket Watch
N1  - Advertisements on last 13 unnumbered pages
ER  -