Six gave you a good joint.Stewart-MacDonald (Stew-Mac)is one helluva' place. I live about 40 miles up the road from Athens and love to go there. Great place! THey may have more info if you contact them by e-mail. I have a Gotoh box sitting right here (albeit about 6 years old) and it doesn't say squat besides Gotoh and Japan.
If Stew-Mac doesn't have it then my guess is it may be unavailable but do look through the entire list, not just Bill's link.....On Bill's linked page, type just the name Gotoh in their SEARCH box and it will pull up 4 pages of products.