Figure 12 Detail of the applied shell and upper rail of a picture frame carved by John Welch for John Singleton Copley's portrait of Nicholas Boylston, Boston, ca. 1767. White pine, gilded. 66 3/4" x 47 3/8". (Courtesy of the Harvard University Portrait Collection, bequest of Ward Nicholas Boylston to Harvard College, 1828, ©President and Fellows of Harvard College, acc. 1828 H 90.)