Portrait of the Silversmith Johann Friedrich Baer, c. 1770, Attributed to Johann Daniel Heimlich, French, 1740 - 1796, 37 1/2 x 30 in. (95.25 x 76.2 cm) (sight)47 x 39 1/2 in. (119.38 x 100.33 cm) (outer frame), Oil on canvas, France, 18th century, Johann Friedrich Baer proudly presents his Masterpiece Cup and Cover, which he made in 1746 to become a master in the guild of silversmiths of the city of Strasbourg, France. The artist's contemporaries immediately recognized the cup and cover as a masterpiece.