Stamped “Patent Applied For” and “made by goto” (note the missing “h”, common to all of these). These pickups were used in many of the 70’s/80’s “lawsuit” guitars by Greco, Tokai, Edwards, etc., and are excellent sounding pickups in their own right. Double cream bobbins with two rows of hex screws, just like DiMarzio. If you need one of these, here you go. $79.