Jan Van Os (after) ( 1744 - 1808 ) was a Dutch painter. Jan Van Os (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 412.03 USD for Mixed flowers in an urn on a ledge with grapes and a bird`s nest, a niche behind in 2004 to 4536.29 USD for Grapes, peaches, raspberries and summer flowers in a Chinese bowl with a sculpted te