I just picked up a Cullmann 2901 tripod from Ebay for $20. In reasonable condition but missing the quick release plate. Have just found a New York shop that will supply and post to me for an extra USD5! I'm buying 1/4" and 3/8" plates.
Hadn't heard of them until I saw this one advertised. West German made. I think the one I bought is about 20 years old, judging by the state of the instruction manual.