56/99. Edition and signature lower in pencil. Giorgio De Chirico dry stamp lower left, Alberto Caprini Stampatore, Rome, dry stamp lower right. Telemarket authenticity certificate. Total edition: 99 copies numbered from 1/99 to 99/99; 30 copies numbered from I/XXX to XXX/XXX; 21 copies numbered from A to Z; 15 P.d.a. and 9 copies hand-colored by the artist. Publication: : A. Porcella, Roma, 1974; C. Siniscalco ( a cura di ) Villongo, 1984; A De Paz, Bologna, 1985; Giorgio De Chirico - catalogo dell'opera grafica, 1969 - 1977, by Edoardo Brandani, Bora Editions, Bologna, 1990, p. 202, ill. 177.