ah.. it was on putfile... which seems to be gone...i'll try and upload one later... works quite well... but is also made out of aluminum or resin impregnated phenolic...
per the goog...
http://www.guitar-museum.com/guitar.php?ID=7304
http://reviews.harmony-central.com/reviews/Guitar/product/Yamaha/FG-340/10/1
http://www.guitarists.net/forum/view_bb.php?forum=4&thread=51025
HTH...