A very rare 1976 oil painting by Richter. Moreover, this is called Oil in Panel instead of canvas. 70x100cm.

Cf :​ ​Sotheby's

 

And also from Sotheby's, an abstract with a slightly unusual touch. Moreover, although this looks like a large work, it is actually quite small at 62 x 52 cm.

Cf :​ ​Sotheby's