http://media.use.com/images/s_2/f75fb5f860c201eef567.jpg http://www.use.com/images/clicklarge3.gif Please can anybody id the marks on the item. its from the rear caseback of a watch dating between 1905 and 1920. i understand the top 14k marks however im at a loss with regard to the cup, JS OR SJ, a...