Bidspirit auction | Large bundle of 20 drawings,

Large bundle of 20 drawings, watercolo - Large bundle of 20 drawings, watercolors and two oil works by various 20th century artists with motifs from mining, industry and related subjects, Arnold Fiedler (1900-1985), R. Kühn, monogramist E.K., Alexandr Frank (1902-?), Hans Reifferscheid (1902-?), monogramist W.H., and many more, some with traces of age and conservation defects, mostly signed, sheet dimensions up to 60 x 80 cm