WMF Britain has helped to conserve stained and painted glass spanning a millennium. Today, leading figures explain the glass art of three major sites: the c. 1200 panels from the Corona of Canterbury Cathedral, where Becket's skull was venerated; St Michael's Coventry's early fifteenth-century work of John Thornton, master of York Minster's east window; and Strawberry Hill itself with Walpole's eclectic assemblage of Netherlandish glass. A tour follows lunch.

Members £60, Non-members £70. Includes refreshments throughout the day. Travel to Strawberry Hill, Twickenham is not included.