Dutch graphic designer who created this series of 4 postcards (maybe there more, but I never saw them), bird-eye view of Dutch city market squares.  

Above: Groningen, Utrecht, Middelburg and Amsterdam (Nieuwmarkt)

He also designed some of the covers of the iconic “Gouden boekje” editions. All dear visual memories of my youth. 

gerbrandcaspers@icloud.com