Peter Struycken [1] is a Dutch artist who produced a lot of works with pen plotters [2]. He is the brother of Carel Struycken [3]. He is befrended with Walter Lewin [4], who also owns a collection of his art works [5].

[1] https://en.wikipedia.org/wiki/Peter_Struycken

[2] http://pstruycken.nl/EnDyn.html?D,tag=P&w

[3] https://en.wikipedia.org/wiki/Carel_Struycken

[4] https://en.wikipedia.org/wiki/Walter_Lewin

[5] http://pstruycken.nl/EnDyn.html?L&l&ColWLewin