Johan Jens Neumann ( 1860 - 1940 ) was a Danish painter. Johan Jens Neumann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 37.89 USD for Marine med skibe udfor Kronborg. in 2004 to 7500 USD for View of Helsingor Point and Kronborg Castle near Copenhagen, Denmark in 2012 , based on the size and medium of the artwork.