Roy Ehrhardt
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18 books
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Books
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- American pocket watch encyclopedia and price guideRoy Ehrhardt
- Hampden Watch CompanyJames L. Hernick, Roy Ehrhardt et al.
- American pocket watch 1979 price indicatorRoy Ehrhardt
- Price guide to Col. George E. Townsend's 4-books on American pocket watchesRoy Ehrhardt
- American pocket watch 1977 price indicatorRoy Ehrhardt
- Violin Identification & Price Guide, Book 3 (Violin Identification & Price Guide)Roy Ehrhardt
- Patek Philippe Parts & Materials Catalog BookRoy Ehrhardt
- Encyclopedia and Price Guide to American Pocket Watches (Illinois)Roy Ehrhardt, Meggers
- Clock identification and price guideRoy Ehrhardt
- Violin Identification and Price Guide, Book 1 (Violin Identification & Price Guide)Roy Ehrhardt
- Elgin Watch Company Grade and Serial NumbersRoy Ehrhardt
- Rockford Watch CompanyRoy Ehrhardt
- American pocket watch identification and price guideRoy Ehrhardt
- Violin Identification and Price Guide, Book 2Roy Ehrhardt
- American Pocket Watches Identification and Price GuideRoy Ehrhardt
- Foreign and American pocket watch identification and price guideRoy Ehrhardt
- Modern Wrist Watch Price Guide Book 1Roy Ehrhardt
- Trade marksRoy Ehrhardt