Rolf Hans Frankfurt 1938 - 1996 Basel John Cage, August, 1986 signed on the Mount and dated Verso signed, dated and titled 23.6 x 17.6 cm Provenance: Estate of the artist Rolf Hans was a friend of John Cage. The photo was taken during a visit to Switzerland. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution