I found this lovely postcard of an unfortunate postman losing his mail in a windstorm on Pinterest, then traced an original copy to Delcampe. And then I found that it was made into a mini-sheet in 2015… Be still my beating heart!
The poem translates as follows:
The Obsession of the Postman
Good gracious, it is raining postcards!
Everyone is an amateur!
They endlessly dance infernally around,
Around the unfortunate postman!