"Johan Fredrik Martin (8 June 1755 – 28 September 1816) was a Swedish painter and engraver of the eighteenth century. He worked in a variety of media, especially stipple, contour etching and aquatint." - (en.wikipedia.org 02.02.2021)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)
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