Frans Van Der Mijn (after) ( 1719 - 1783 ) was a French painter. Frans Van Der Mijn (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 572.6 USD for Portrait of a gentleman believed to be Thomas Mortimer in 2005 to 2476.44 USD for Portrait of a gentleman, three-quarter-length, in grey coat with a blue satin waistcoat, stand