Roy Ehrhardt
· 36 obras en el catálogo
Obras
Trade marks
American pocket watch 1977 price indicator
1976
American pocket watch 1979 price indicator
1979
American pocket watch encyclopedia and price guide
1982
American Pocket Watches Identification and Price Guide
1987
American pocket watch identification and price guide
1974
Cartier wrist & pocket watches, clocks
1992
Clock
1979
Ehrhardt and Meggers Railroad Watches
1995
Elgin Watch Company Grade and Serial Numbers
1976
Encyclopedia of old pocket knives
1973
Encyclopedia of Pocket Knives/Books 1 and 2 With Price Guide
1974
F. Kroeber Clock Co
1983
Foreign and American pocket watch identification and price guide
1976
Foreign Clock Price Guide
1993
Foreign Clocks Identification and Price Guide
1993
Hamilton Serial Numbers and Production Figures With Price Guide
1981
Modern Wrist Watch Price Guide Book 1
1992
Patek Philippe Parts & Materials Catalog Book
1997
Pocket Watch Inventory
1979
Pocket watch price guide
1972
Pocket Watch Price Indicator, 1980
1980
Price guide to Col. George E. Townsend's 4-books on American pocket watches
1983
Trade marks
1976