I BOUGHT ONE USED IN 2009 [IT LOOKS LIKE IT'S BEEN AROUND SINCE THE 70-80'S]...I SEARCHED FOR INFO ON THE NET BUT DIDN'T SEE YOUR INQUIRY OR ANYTHING ELSE TIL NOW. MINE MUST BE A CHEAPER MODEL...IT DOESN'T APPEAR TO BE SOLID [BUT HAS A NICE SOUND] AND THE HEADSTOCK LOGO IS A METAL PLATE WITH RAISED LETTERS "JADEE". THE SPLIT PARA-GRAMS ARE NOT MOP, BUT APPEAR TO BE ALUMINUM, WHICH IS THE SAME MATERIAL AS THE ADJUSTABLE SADDLE IN THE BRIDGE...I BOUGHT IT CUZ IT'S THE CLOSEST TO THE REAL THING I CAN AFFORD...WISH I HAD MORE INFO FOR YOU!!