Fritz Ryser ( 1910 - 1990 ) was a Swiss painter. Fritz Ryser s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 380.4 USD for Elseli in 2005 to 1249.4 USD for Rosa und weisse Margaritchen in Glas in 2008 , based on the size and medium of the artwork.