Mathias Schmid ( 1835 - 1923 ) was an Austrian painter. Mathias Schmid s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 22.14 USD for Portrait of an old man in 2004 to 15149.04 USD for An Invitation to Danc in 2009 , based on the size and medium of the artwork.