Anonymous 18th Century Male Nude

This nicely rendered drawing came into my collection several years ago. I have not seen many 18th century original drawings on the market, unlike the good quantity of 19th century academic nude drawings available out there. Chalk manner prints of 18th century drawings are more numerous and I have a few of those in my collection also.
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Caption: Male Nude

Artist: Anonymous, unsigned

Medium: Red chalks on paper

Dated: undated, circa 1780-90