3/4 size, all plywood. Spruce veneer top, maple veneer back and sides. Maple fingerboard and tailpiece. Old-style hatpin pegs. No markings or label inside. I found in the back of a music store in Kansas in 1973 and paid $150 for it. It's had several hundred $ in various repairs over the years, including a full neck repair and re-set. Any ideas on its origin? I've never see another, yet it appears to be an inexpensive factory bass. It does have great tone and is plenty loud.