Robert, Henri, <br/><br/>
Études sur diverses questions d'horlogerie / 
par Henri Robert. 
 - viii, 274 pages, 4 leaves of plates :  illustrations ;  22 cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><br/>Print reproduction. 
<br/><br/><label>ISBN: </label>9781143489150 1143489152 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Horology.<br/>Clocks and watches.
<br/><br/><label>Subjects--Index Terms: </label>Timekeeper (general) Not stated Robert Henry