Black/cream observation of the Sun, 9 August 1904
Black/cream observation of sunspots made by John Willis on 9 August 1904 at 5:30pm. On the reverse Willis has noted: "The sun somewhat dim, and considerable haze to the atmosphere. JW." One of 275 pencil, ink and colour wash observations of the Sun and Jupiter made by Willis in Folkestone between 1879 and 1906.