TY  - BOOK
AU  - Ohlson,Olof
ED  - Waltham Watch Company.
TI  - Helpful information for watchmakers
PY  - 1987///
CY  - Arlington, Va
PB  - Arlington Book Company
KW  - Waltham Watch Company
KW  - Clocks and watches
KW  - Design and construction
KW  - Repair
KW  - USA
KW  - Waltham
KW  - practical
KW  - Ohlson, Olof
KW  - Watch (general)
N1  - Reprint of: Waltham, Mass : Waltham Watch Company, 1937
ER  -