Anatoly Zverev
(1931 - 1986)
 

Anatoly (Anatoli) Timofeevich Zverev was a Russian artist, a member of the non-conformist movement and a founder of Russian Expressionism in the 1960s. He spent all of his life in Moscow.

https://en.wikipedia.org/wiki/Anatoly_Zverev

Don Quixote
1971
Acrylic on paper, laid on board,
42.5 x 52.5 cm.
Private collection (sold on Dec 3, 2009)
https://macdougallauction.com/en/catalogue/view?id=3851