Author

Roy Ehrhardt

18 books found

Cover of Patek Philippe Parts & Materials Catalog Book

Patek Philippe Parts & Materials Catalog Book

Roy Ehrhardt · First published 1997

Cover of Foreign Clock Identification and Price Guide

Foreign Clock Identification and Price Guide

Roy Ehrhardt · First published 1993

Placeholder cover for Cartier wrist & pocket watches, clocks

Cartier wrist & pocket watches, clocks

Roy Ehrhardt · First published 1992

Cover of Modern Wrist Watch Price Guide Book 1

Modern Wrist Watch Price Guide Book 1

Roy Ehrhardt · First published 1992

Cover of American Pocket Watches Identification and Price Guide

American Pocket Watches Identification and Price Guide

Roy Ehrhardt · First published 1987

Cover of Price guide to Col. George E. Townsend's 4-books on American pocket watches

Price guide to Col. George E. Townsend's 4-books on American pocket watches

Roy Ehrhardt · First published 1983

Cover of American pocket watch encyclopedia and price guide

American pocket watch encyclopedia and price guide

Roy Ehrhardt · First published 1982

Cover of Violin identification and price guide

Violin identification and price guide

Roy Ehrhardt · First published 1970 · Latest edition 1980

Cover of American pocket watch 1979 price indicator

American pocket watch 1979 price indicator

Roy Ehrhardt · First published 1979

Cover of Violin Identification & Price Guide, Book 3 (Violin Identification & Price Guide)

Violin Identification & Price Guide, Book 3 (Violin Identification & Price Guide)

Roy Ehrhardt · First published 1978

Cover of Clock identification and price guide

Clock identification and price guide

Roy Ehrhardt · First published 1977

Cover of American pocket watch 1977 price indicator

American pocket watch 1977 price indicator

Roy Ehrhardt · First published 1976

Cover of Elgin Watch Company Grade and Serial Numbers

Elgin Watch Company Grade and Serial Numbers

Roy Ehrhardt · First published 1976

Cover of Foreign and American pocket watch identification and price guide

Foreign and American pocket watch identification and price guide

Roy Ehrhardt · First published 1976

Cover of Rockford Watch Company

Rockford Watch Company

Roy Ehrhardt · First published 1976

Cover of American pocket watch identification and price guide

American pocket watch identification and price guide

Roy Ehrhardt · First published 1974

Cover of Trade marks

Trade marks

Roy Ehrhardt · First published 1973

Placeholder cover for Pocket watch price guide

Pocket watch price guide

Roy Ehrhardt · First published 1972