Ok I got my Yamaha YSS-475 today and the horn is perfect. Everthing the ebay add said it was but the ingraving says YSS-475 with no "II". The ebay add said it was a YSS-475 II and specifically stated it was not the older YSS-475. The serial number is:021208. So did the guy lie or does Yamaha just leave off the "II"?