Mythen is a smal mountain massif situated at Lake Lucerne in the Schwyz Prealps. Its highest peak rises 1’899 metres above sea level.
The two summits are depicted on a monumental artwork (finished 1902) of Charles Giron in the National Council chamber in the Federal Palace of Switzerland in Bern. The room is dominated by the 11.5 metres long an five metres high fresco, which shows the Rütli meadow with the two peaks of the Mythen in the background (Rütli meadow is the site, where Switzerland was founded in 1291, as the legend says).
Switzerland 1914/1918, Mythen massif.
Switzerland 1931, Mythen.
The stamps were issued in the series "High Value Pictorial Definitives".