Bidspirit auction | Unknown artist, 20th century Martinus

Unknown artist, 20th century Martinus Thür, Rothenburg. Unclearly signed lower right.  Colour etchings, 29 x 33 cm. With frame 46 x 56 cm. - European School, 20th century, two works, ‘Abstracte composities’ Unclearly signed lower right, both numbered 1/1. Origin: Galerie Aggi Hendriks, Roermond.  Mixed technique, 50 x 50 cm.