American pocket and wrist watch balance staff interchangeability list /
Townsend, George E., 1918-
American pocket and wrist watch balance staff interchangeability list / Balance staff interchangeability list by George E. Townsend, Oran S. Emrich, Roy Ehrhardt. - First edition. - 36 pages : illustrations ; 28 cm
0913902527 9780913902523
86231749
Pocket watches--United States.
Wrist watches--United States.
Clocks and watches--Repairing--United States.
Clocks and watches--Repairing.
Pocket watches.
Wrist watches.
United States.
USA Staff Reference Balancewheel Practical
American pocket and wrist watch balance staff interchangeability list / Balance staff interchangeability list by George E. Townsend, Oran S. Emrich, Roy Ehrhardt. - First edition. - 36 pages : illustrations ; 28 cm
0913902527 9780913902523
86231749
Pocket watches--United States.
Wrist watches--United States.
Clocks and watches--Repairing--United States.
Clocks and watches--Repairing.
Pocket watches.
Wrist watches.
United States.
USA Staff Reference Balancewheel Practical