[Below: This is a mayday 1939 postcard for the Sudetenland, published by Alfred Oemler.]

[Below: Like that above, this is a mayday 1939 postcard, but this time for Austria, published by Alfred Oemler.]

[Below: Mayday postcard from 1939, published by Heinrich Hoffmann.]

[Below: Mayday postcard from 1938, declaring mayday a national holiday. This show a 'tinnie' or 'day badge' pin one could purchase at various events.]

[Below: Mayday postcard showing a maypole.]

[Below: Mayday advertisement showing workers saluting the maypole.]