A seated female figure with bound mouth holding a palette and a mahl stick and supporting an oval male portrait, with a second female figure handing a pair of dividers to a boy, with other boys drawing and supporting a blank sheet. Red chalk drawing.

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Credit

A seated female figure with bound mouth holding a palette and a mahl stick and supporting an oval male portrait, with a second female figure handing a pair of dividers to a boy, with other boys drawing and supporting a blank sheet. Red chalk drawing. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.