Haselton, Philip H., <br/><br/>
The watchman's clock in America :  a brief history / 
Philip H. Haselton. 
 - xi, 1154 pages :  illustrations ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Watchmen--Equipment and supplies.<br/>Clocks and watches.<br/>Watchclocks.
<br/><br/><label>Subjects--Index Terms: </label>History USA watchman Haselton, Philip H. Time recorder