Sandsteel Quality Mainsprings Catalog No. 12 from 1944 - reprint

Sandsteel Quality Mainsprings Catalog of mainsprings for American and Swiss watches from Watch-Motor Mainspring Co, Inc, New York, 8½" x 11", 46 pages. Catalog 12 is dated from 1944 and this is very nice quality reprint. Very comprehensive covering Swiss and American Pocket and Wrist Watches made to that date. Images do a suitable job or representing the item.