The complete set of five etched German silver (copper/nickel/zinc) sheet metal gratings, mounted to white museum board with window mat (as issued), all contained in the original wooden box.

2002

all I. 25 1/2 x 20 1/2 in. (64.8 x 52.1 cm)
all S. 32 3/4 x 27 1/2 x 2 3/4 in. (83.2 x 69.9 x 7 cm)
box 32 x 37 1/2 x 2 3/4 in. (81.3 x 95.3 x 7 cm)

All signed and numbered 12/36, 12/36, 13/36, 12/36 and 13/36 in pencil respectively on the labels affixed to the inside of the window mats, additionally numbered 11/36 in pencil on the label affixed to the interior of the wooden box (there were also 10 artist's proofs), published by Edition Schellmann, Munich and New York.