Obrutschew, W. A. — Geologie von Sibirien.

Berlin, Gebrüder Borntraeger, 1926. 8vo (24.8 x 16.5 cm). xi, 572, [iii] pp.; 60 text figures, 11 maps (one folding). Near contemporary pebbled half cloth over marbled boards. Gilt title on the spine. Floral endpapers. = A great classic on the geology of Siberia and its mineral wealth with the large tectonical map. Published as Fortschritte der Geologie und Palaeontologie 15. Label removed from front free endpaper recto; a few library markings in the top margin of the front free endpaper verso and title; a few, small spots, but mostly quite clean. Bound copies are rare.