signed and dated "Bernard Aubertin 1969" on the reverse acrylic and nails on wood panel 19 5/8 x 19 5/8 in. (49.8 x 49.8 cm.) Executed in 1969, this work is unique and accompanied by a certificate of authenticity provided by the Archivio Opere Bernard Aubertin and is registered under the archive number TCLR96-1000205623.