Amsterdam and New York: Joost Elffers Productions, 1982. First Edition, First Printing. Hardcover. Linen on boards. First Issue. Small quarto. 10.25 x 7.25 inches. 20 pp (unpaginated). Near Fine. Original cardboard slipcase. Architectural pop-up book with no text but 10 different configurations of pop-up stairs. Blind stamped linen on boards.....