Provenance: Label of Sotheby's, Hong Kong, June 2014 on the reverse.
Certificate of authenticity by Karuizawa New Art Museum, Nagano, Japan, archive no. MS-0001-01, hand signed by the artist.
Very rare work on canvas by Mukai dated 1960: the artist in a moment of madness in November 1965 burnt all the works in his studio (this is documented in the Ashiya Museum in Japan), thus, the ones from the 1960-65 period that were saved were really very few, so extremely rare and important as this one is.
Signed on the reverse