Ehrhardt, Roy, <br/><br/>
Waltham pocket watch identification and price guide :  serial numbers with description of Waltham watch movements / 
[Roy Ehrhardt]. 
 - 1st edition. 
 - 172 pages :  illustrations ;  29 cm 
<br/><br/> Includes index.  Cover title. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>American Waltham Watch Company.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pocket watches--Prices--United States.<br/>Clocks and watches--Prices--United States.<br/>Pocket watches--Collectors and collecting--United States.
<br/><br/><label>Subjects--Index Terms: </label>Collecting USA Priceguide Waltham Catalog   watch Pocket Watch