"Count Anton[io] Maria Zanetti (1679–1767) was a Venetian artist, engraver, art critic, art dealer and connoisseur. He formed a collection of engraved gems, of which he published a lavish catalogue." - (en.wikipedia.org 05.09.2020)
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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.)