Frank, Mark, <br/><br/>
Evolution of tower clock movements and their design over the past 1000 years / 
by Mark Frank. 
 - 52 pages :  illustrations,  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tower clocks--Design and construction.<br/>Tower clocks--History.<br/>Antikythera mechanism (Ancient calculator)<br/>Clocks and watches--Escapements.
<br/><br/><label>Subjects--Index Terms: </label>History Global towerclock Frank, Mark Towerclock