Guess the painting

This week’s question:

Who painted this lemon (above)? Answer next Sunday.

Last week’s detail (below) was an abbreviated word from Charles Demuth’s American masterpiece, I Saw the Figure 5 in Gold. This startling image, made in 1928, shows the number five not once or twice but three times, and in shining gold too, hurtling towards you out of a vortex of signs, streets and vectoring lights. It is a homage to Demuth’s friend William Carlos Williams, whose poem The Great Figure evokes a fire engine speeding through the city by night. The painting appears forever new too, making something out of numbers and letters in the darkness: ushering in an age of 24-hour urban modernity.