Observation of sunspots by John Willis on squared paper with a green surround, undated. There is a pencil calculation on the reverse. One of 275 pencil, ink and colour wash observations of the Sun and Jupiter made by Willis in Folkestone between 1879 and 1906.

Details

Category:
Art
Object Number:
2001-769/228
Materials:
paper, pencil, ink, col. wash
Measurements:
overall: 110 mm x 150 mm
type:
drawing
credit:
Sotheby's (Olympia)