The ketch in the picture is sailing a genoa, main, mule, and mizzen.

"mule sail n. A staysail hung with the point down and carried between the
mainmast and the mizzen on ketches."

The Sailor's Illustrated Dictionary by Thompson Lenfestey published 1994 The
Lyons Press

Ansley Sawyer
SV Pacem
39' Camper Nicholson Ketch