This watercolour is hand signed and dated in pencil by the artist "Heckel 22" [1922] in the lower left image.
It is also hand titled in pencil “Grauer Tag” [Grey Day] in the lower left image.

Provenance:
Günther Franke, 1969.
Private Collection, Berlin.
This watercolour is recorded in the archive of the Erich-Heckel-Stiftung, Hemmenhofen.

Condition: Very good condition.