Contributions to the Knowledge of Ornithology. Birds collected by the Swedish Mount Elgon Expedition 1920
Häftad bok. Berlin, R. Friedländer & Sohn. 1923. (4)+280 sidor.
Gott skick. Printed wrappers. The over-sized wrappers are slightly bumped and chipped with minor loss of paper. The top margin and the spine are a bit sunned. With ten plates, five of them in colour, and a fold-out map. Unopened. Journal für Ornithologie. 71 Jahrgang. Sonderheft 1923.
