Johan Nicolai Carsten Ravn ( 1859 - 1914 ) was a Danish painter. Johan Nicolai Carsten Ravn s works have been put up for auction numerous times, with realized prices varying from 32.1 USD for Woman with her umbrella in 2009 to 52.47 USD for Poster from Tivoli in 2012 , based on the size and medium of the artwork.