P claims to be a dealer and that the losses he incurred in the sale of the Treasury securities were losses connected with his dealer's 'stock in trade.' If this were so, P claims that such losses, even when they result as his did from the sale of a capital asset, are treated as ordinary rather than capital losses and can, therefore, be fully offset against ordinary income. 26 U.S.C. sec. 1221(1). P appealed from adverse determinations.