Initialed "MCE" in the plate lower right
Catalogue raisonné: Bool #382
NOTE: A color variant outside the regular edition
published by 'Boekckier', Journal of the Foundation Dutch Exlibris Kring-second range, 3, Volume 14 July 1959.
© The M.C. Escher Company B.V.
Here, ants vibrate with the energy of a swarm, and the print jiggles with electricity.