Complex sentence: The only dated work by his hand is a fruit still life dated 1647 is a fruit garland around a "grisaille" bust of Christ, which was originally at the Harrach Gallery in Vienna and was last auctioned on 18 January 1983 at Christie's New York.
Split into simpler sentences: The only dated work by his hand is a fruit still life dated 1647, which represents a fruit garland around a "grisaille" bust of Christ. This painting was originally at the Harrach Gallery in Vienna and was last auctioned on 18 January 1983 at Christie's New York.