This mountain circuit International Flying Meet, was based in Zurich (love the Umlaut in the ‘u’). I can’t find any online references to the event beyond the poster – which is very strange.
In 1922 aircraft were not ‘sleek’ or simple to a modern aesthetic at all, but this hasn’t slowed Swiss artist Niklaus Stoecklin (1896–1982) at all. In fact he’s created a ski-wearing propeller driven one wing humanoid to represent the event. In some ways I think this is going to be the oddest item in the blog’s art.
James Kightly, Vintage Aero Writer.
Various sources, including here.