The Game of Chess (c. by Lucas van Leyden Dutch, Gemäldegalerie, Berlin, oil on oak - was among the first Dutch exponents of genre painting and is generally regarded as a very accomplished engraver. (wiki) - (photo by Gandolf's Gallery)
Four Seasons Chess is an early attempt to configure chess for four players. This beautiful illustration comes from the century Book of Games, commissioned by Alfonso the Wise of Castile. Visit the site to find out how to play the game.
So is this a re-imagined scene of Franklin playing chess in London with Lady Howe in That was a last ditch, behind the scenes effort to stop the impending rebellion. Franklin was surprised by the invitation but was willing to play along