Vintage silkscreen Jean Pierre Yvaral Structure in progress 1972

Jean-pierre Yvaral (1934 - 2002) Structure in progress, 1972. Silkscreen print on aluminium frame. Signed at the bottom in front of the painting by the artist. And signed on the back, numbered 56100. Purchased directly from the artist. Size of the whole: 45 X 45 X 2 cms. The frame measures between 1 and 2 mm. The signature is serigraphied on the work and handsigned on the back of the work.