Bidspirit auction | Unknown Artist - Russian Avant-garde

Unknown Artist - Russian Avant-garde Drawing - Moscow 1919 - Ink and pencil on paper. Signed. We have not identified the artist's name (there is some chance that this is El Lissitzky, but we have no way of confirming this). Size: 19X12 cm. Fair-good condition: a few wormholes; tear and missing upper right corner.