Roy Ehrhardt

R. E. · R. Erhardt · Ray Ehrhardt · Roy Erhardt

title	ISBN-13	year of publica- tion	other author(s)
American Clock Book No. 4: Price Guide	978-0-913902-98-1	1997
American pocket watch 1979 price indicator: Identification and price guide	978-0-913902-29-5	1979
American Pocket Watch: Serial Number Grade Book	978-0-913902-78-3	1993	William Meggers
Bradley Character Watches Identification & Price Guide	978-0-913902-89-9	1994	Ehrhardts
Ehrhardt and Meggers Railroad Watches: Identification and Price Guide	978-0-913902-88-2	1995
Elgin Watch Company Grade and Serial Numbers	978-0-913902-10-3	1976
F. Kroeber Clock Co. Identification and Price Guide	978-0-913902-49-3	1983
Foreign Clock Identification and Price Guide: Book 5	978-0-913902-71-4	1993
Foreign Clock Price Guide	978-0-913902-69-1	1993
Patek Philippe Parts & Materials Catalog Book	978-0-913902-99-8	1997
Patek Philippe: Wrist Watches, Pocket Watches, Clocks: Identification and Price Guide: Retail & Vintage Prices: Book 1	978-0-913902-60-8	1991	Joe Demesy
Price Guide to 2000 Winchester and Marble's Hardware Collectibles	978-0-913902-08-0	1974	Larry Ehrhardt
Trade marks: Watch cases, pocket watches, precious stones, diamonds	978-0-913902-06-6	1976
Vintage American & European Wrist Watch Price Guide: Book 4	978-0-913902-58-5	1989	Sherry Ehrhardt · Joe Demesy · Peter Planes · David A. Mycko
Vintage American and European Character Wristwatch Price Guide, Book 3	978-0-913902-57-8	1989	Sherry Ehrhardt · Peter Planes · David A. Mycko
Vintage American and European Wrist Watch Price Guide/Book 2	978-0-913902-56-1	1988	Sherry Ehrhardt · Joe Demesy · Ken Specht · Peter Planes · David A. Mycko
Vintage American and European Wrist Watch Price Guide/Book 5	978-0-913902-59-2	1991	Sherry Ehrhardt · Peter Planes · David A. Mycko
Waltham Pocket Watch Identification and Price Guide Using Serial Numbers and Pictures of Waltham Watch Movements	978-0-913902-17-2	1976

Roy Ekins