I took these out of the Burny Goldtop that I recently had for sale. These came non-original, loaded in that guitar when it arrived from Japan.
1976 Maxon-made U-1000 pickups. These have alnico8 magnets and are essentially the same as Ibanez Super70s. Check the serial no. and the braided wire. These are high quality Japanese vintage pickups.
I would check out the page below about these pickups, pretty much in line with my experiences. These have become sought-after pickups, and this matched set is in amazing shape with plenty of lead left. Unmodified and with some pickups rings to boot.
My experience with the sound is that they are very round PAF clone pickups, definitely on par or better than the Gibson 57 Classics. These are lower output and have an awesome bell like clean tone. Awesome midrange and a great note bloom when driven. Definitely on the fatter side, and would be great for jazz, blues, or classic rock. Would work best in a Les Paul, I reckon.
http://www.mylespaul.com/forums/member-classifieds/157836-fs-maxon-u-1000-pickups-japanese-paf-copies.html
Asking $135 shipped via PayPal Gift in the pickup rings for the set. This is a very reasonable price, and I am firm on it. Cash only and no trades please.