Paul Hagelstein ( 1825 - 1866 ) was a Belgian painter. Paul Hagelstein s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 272.33 USD for A Neapolitan Urchin in 2006 to 2000 USD for street urchin with pet mouse in 2006 , based on the size and medium of the artwork.