This is one of Thomas Colvin's series of pinkie schooner designs, the 36ft "Yin-Yang", and there is a description of them in his book "Cruising Designs". There are alternative gaff schooner and junk schooner rigs mentioned, though this example appears to be the former, but with a bermudan main. Since the interior is gutted, and the engine is out for rebuilding, this is really a hull, deck and ballast on offer, and the price offered ought to reflect that.