![oil on canvas](/sites/default/files/styles/signpost_image/public/teaser-images/john-armstrong-2-bmagg-k4467.tiff%20%282%29.jpg?itok=k0HoxeyA)
![oil on canvas](/sites/default/files/styles/signpost_image/public/teaser-images/john-armstrong-2-bmagg-k4467.tiff%20%282%29.jpg?itok=k0HoxeyA)
Stefan Knapp (11 July 1921 – 12 October 1996) was a Polish painter and sculptor, who worked in Great Britain. He developed and patented a technique of painting with enamel paint on steel, facilitating decorating public architectural structures.
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