A limited edition Bicentennial plate of The Brandywine Valley Association. General Knyphausen at Brandywine by Andrew Wyeth. The Battle of the Brandywine took place September 11, 1777. The Hessian soldiers, under General Knyphausen, played an important part in the encounter. Copyright 1975. Limited Edition, one of 1000 plates. Produced by Vernon Wood Reproductions, Doylestown, Pennsylvania. The plate is signed in the print, lower right. Marked and inscribed on the backside. Framed. American Bicentennial Plates, Wall Art, Home Decor, and Collectibles.