TECHNIQUE: Lithograph and original Heliogravure (Matthieu and Draeger workshops). Dry stamp of the signature. NUMBERING: / 1700 copies numbered in pencil (the number you receive may differ from the one shown in the photo). PAPER: Vellum 53.5 x 37 cm. Field 69-2 F / Michler & Lopsinger 1228 / Sahli 135.
This work, published by J Schneider in 1969, was commissioned by the SNCF to promote it; it is part of the "Butterfly suite" series.