Johan Hendrik Boshamer ( - ) is a painter. Johan Hendrik Boshamer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4422.26 USD for Moored vessels, Dutch three-masters and a rowing boat in a calm, a city beyond in 2005 to 6307.19 USD for Sailing vessels in choppy seas in 2009 , based on the size and medium of the artwork.