Léonie Humbert Vignot ( 1878 - 1960 ) was a French painter. Léonie Humbert Vignot s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 24.5 USD for continental cityscapes in 2007 to 1354.04 USD for Orientale √† l'√©ventail in 2009 , based on the size and medium of the artwork.