Please see monograph, Origins of the Waltham Model 57, for background information. Click thumbnail pictures on slide pages for larger view. Return to M57 Home Page The right to download and store or output this page is granted to users for their personal use only. Any other reproduction, by any means - mechanical or electronic - without the express written permission of Ronald J. Price is strictly prohibited. Copyright © 2007 Price-Less Ads TM. All rights reserved.