A joint program by Doyle and Winterthur will be held on Tuesday, July 28, from 3 to 7 p.m. (EDT). Titled Objects of Independence: American Arts at the 250th, this afternoon of lectures and conversation will explore American arts at the nations 250th anniversary. Taking place at 175 E. 87th St., New York, N.Y., light hors doeuvres and drinks will be served. Participating speakers will be Alexandra Deutsch, Josh Lane, and Kedra Kearis. Moderator will be Chris Barber. Space is limited, to learn more, email events@doyle.com.