Avant Garde painting discovered beneath Dutch masterpiece.

Experts in Holland using X-ray have discovered a previously unknown Avant Garde painting beneath an equally as unknown masterpiece by the Artist Jan Nieupjur.

Black Square No. 1 Painted by 'Abstract Depressionist'  Nieupjur in 1915  was found to be concealing his earlier work White Square No. 12. Painted during the artists not so depressed period.

It was later discovered that an earlier work entitled: Primer No.7 lay beneath the white painting.