enamel on stone, in 144 parts

each signed, consecutively numbered and dated 'Allan McCollum 1988 [M-13 No. 13...; M-14 No. 14... ; M-15 No. 15...; M-16 No. 16...; M-17 No. 17...; M-18 No. 18...; M-19 No. 19...; M-20 No. 20...]' on the reverse

smallest 12.7 x 10.4 cm (5 x 4 1/8 in.)
largest 24.2 x 18.3 cm (9 1/2 x 7 1/4 in.)
overall installation dimensions approx. 244 x 274.5 cm (96 1/8 x 108 1/8 in.)

Executed in 1988.