Litteratur
Numismatisk Forening Medlemsblad, collection, 1928-1936, many important articles on Nordic numismatics. Contains Volume XI, Nos. 1-9, 11-20; ; Volume XIII, No. 19 (2 issues October + November 1933; Volume XIV, Nos. 1-5, 7-19, 21-24. A total of about 43 uncommon numismatic journals.