Know the escapement /
Barkus, Sarah J,
Know the escapement / by Sarah and Homer A. Barkus. - 1st edition., 1943 ... Text edited and prepared for publication by Russell E. Tanner. - 93 pages including illustrations, forms, diagrams : frontispiece (group portrait) ; 20 cm
43012639
Clocks and watches--Escapements.
Clocks and watches--Escapements.
EscapmentScie USA Pin lever Adjust escapement Watch (general)
Know the escapement / by Sarah and Homer A. Barkus. - 1st edition., 1943 ... Text edited and prepared for publication by Russell E. Tanner. - 93 pages including illustrations, forms, diagrams : frontispiece (group portrait) ; 20 cm
43012639
Clocks and watches--Escapements.
Clocks and watches--Escapements.
EscapmentScie USA Pin lever Adjust escapement Watch (general)