Salvador Dalí, Le Cracking du pétrole (Cracking Petroleum), from Hommage à Leonardo da Vinci (American Inventions)

1975
Drypoint with extensive hand-colouring, on BFK Rives paper, with full margins.
I. 36 x 50.5 cm (14 1/8 x 19 7/8 in.) S. 56.5 x 75.5 cm (22 1/4 x 29 3/4 in.)
Signed and inscribed 'Bon à tirer' in pencil (the 'good to print' impression before the edition of 450 and 60 artist's proofs on Arches paper, published by Editions de Francony/Editions Graphiques Internationales), with further pencil annotations in the margins, printed by Atelier Rigals, Paris, inscribed 'êpreuve pour essai couleurs au BAT par Salvador Dalí. Epreuve faisant partie de notre collection' by Denise Rigal in pencil on the reverse, unframed.