So experienced a collector as Baron Alphonse de Rothschild, of Paris, was more than once swindled in the purchase of "old enamels." In one case, however, the coun terfeiting was so well done that it is no wonder he was deceived. In the opinion of experts, the objects must have been covered with enamel paints or powdered, fusible glass mixed with turpentine, and then put through the furnace. This manner of aging can hardly be detected unless by a practical enameller. It was, most likely, in the same way that not only the Baron, but also the London dealer in works of art from whom he bought, were taken in by the Viennese enameller, Werninger, to the extent of an almost incredibly large sum of money, in the matter of an altar, which had been copied by Werninger while he was restoring the original. Baron de Rothschild got his money back, but the Englishman did not get his. Werninger had made it over to his wife, and got off with five years in prison.