below signed 
see Wikipedia
Age: 1. Half 20th century
Technique: etching
about the condition: with signs of storage, paper has stains, see photos

View dimensions: 26.8 x 21 cm
Dimensions whole sheet: 40 x 30 cm

 _gsrx_vers_1266 (GS 8.3.3 (1266))
below signed  see Wikipedia Age: 1. Half 20th century Technique: etching about the condition: with signs of storage, paper has stains, see photos View dimensions: 26.8 x 21 cm Dimensions whole sheet: 40 x 30 cm  _gsrx_vers_1266 (GS 8.3.3 (1266))