Leipzig & Berlin, Teubner, 1931. 8vo. In the original printed wrappers still contained in the original plastic protection. A little rust coming of the staples as usual. A near mint copy. 31 pp.
The rare first appearance of the first publication (Heft 1) of the proceedings of the famous mathematics colloquium founded by Karl Menger, which came to include some of the 20th century most influential and important mathematicians.