That quilted 4004 was a prototype for the 4004Cii series. It does have the walnut body wings in the back but with the quilted maple top. By the time they got the Cii in production, they had changed the fretboard to bubinga and dropped the pickups about an inch toward the bridge. Seems the first production batch also had the walnut back and quilted front, then changed to the maple/walnut/maple sandwich after they used up all of that delicious quilted maple. More detail and photos in the book.