Painting "Three parrot"
 

Help identify with the painting.
Oil on canvas pasted on cardboard, oil.
Size 24h18sm.
There is a signature.
Fritz Wagner??!
Sorry for not very high quality photos.

Artists under this name had a few.
Of these, two Germans (1902 - 1976) and (1896 - 1939).
There is one Swiss (1872 -?).

Thank you!
But who among them can be an author?

Most likely it was the German artist genre painter Fritz Wagner, German, 1896-1939.
His paintings come across in European auction.