Kristiania, Jacob Dybwad, 1922. Royal8vo. Uncut, unopened in the original printed wrappers. Fine and clean. 7 pp.
First appearance of Skolem's paper on the posthumous published works by L. Sylow.
Oslo, jacob Dybwad, 1940. Royal8vo. Uncut, unopened in the original printed wrappers. Very fine and clean. 18 pp.
First appearance of Skolem's paper on the generalizations of the Betti-Guidiceschen equations.
Kristiania, 1921. Royal8vo. Unopened, uncut in the original printed wrappers. Very fine and clean. 57 pp.
First edition.