Books by Roy Ehrhardt

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

American Pocket Watch 1979 Price Indicator: Identification And Price Guide
Roy Ehrhardt

Foreign And American Pocket Watch Identification And Price Guide
Roy Ehrhardt

Illinois Springfield Watches Identification and Price Guide
Roy Ehrhardt

American Pocket Watch: Serial Number Grade Book
Roy Ehrhardt

Hamilton Serial Numbers and Production Figures With Price Guide
Roy Ehrhardt

Rockford Watch Company: Grade and Serial Numbers With Production Figures
Roy Ehrhardt

Patek Philippe: Wrist Watches, Pocket Watches, Clocks: Identification And Price Guide: Retail & Vintage Prices: Book 1
Roy Ehrhardt

Pocket Watch Price Indicator
Roy Ehrhardt

American Pocket Watches Identification and Price Guide: Beginning to End. . .1830-1990
Roy Ehrhardt

American Pocket Watch Encyclopedia and Price Guide
Roy Ehrhardt