Following is a rough translation and reformat of a trademark registration announced by the Trademark Registrar in Reykjavík in 1956. The dates shown are those printed in the document, albeit in an ISO format.
1956/16 — Announced 1956-01-02 and registered 1956-03-03 by National Comics Publications, Inc., New York, USA.
Image of a man with the word "SUPERMAN" above him and the word "SUPERHOMBRE" below him.
According to announcement dated 1944-08-26, the mark is registered in Washington 1945-02-06 as Class 38 (Magazines).