incised with the artist's initials "I.n" inner side of right stone

basalt, in 2 parts

left 5 3/8 x 10 5/8 x 9 in. (13.7 x 27 x 22.9 cm)
right 6 5/8 x 8 1/8 x 8 3/4 in. (16.8 x 20.6 x 22.2 cm)

Executed in 1979.