Details: "50 ejemplares numerados del 001 al 050, firmados por el autor, y 450 ejemplares numerados del 051 al 500." This is no. 150. [35 p.]. 23 cm. 7 b&w illustrations. Booklet. Signed by author on a front page. First tissue page is browned and stuck at top to inside cover. Brown edge on next page. Spanish text.