Twin elliptical pendulum curve

ExhibitorHans P. Kraus Jr. Fine Photographs
ArtistFrederick H. Evans (English, 1853-1943)
Date of artwork1899-1910
MediumHarmonograph drawing in green ink
Size9.2 x 9.0 cm mounted on 16.2 x 12.4 cm paper
Signed"FHE" blindstamp on mount