16 points : mechanical checking procedure systematically planned to eliminate stoppage faulty workmanship and timekeeping troubles : for watch repairing classes : junior and advanced junior /
16 points : mechanical checking procedure systematically planned to eliminate stoppage faulty workmanship and timekeeping troubles : for watch repairing classes : junior and advanced junior /
Sixteen points : mechanical checking procedure systematically planned to eliminate stoppage faulty workmanship and timekeeping troubles At head of title : WPHI
Western Pennsylvania Horological Institute.
- 12 unnumbered pages ; 15 cm
Clock and watch making--Study and teaching.
Clocks and watches--Repairing--Study and teaching.
Repair USA WPHI checklist trainees Western Pennsylvania Horological Institute, education textbook Watch (general)
Clock and watch making--Study and teaching.
Clocks and watches--Repairing--Study and teaching.
Repair USA WPHI checklist trainees Western Pennsylvania Horological Institute, education textbook Watch (general)