Florence Neumengen Engelbach ( 1872 - 1951 ) was a British painter. Florence Neumengen Engelbach s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 212.95 USD for Still life of a Yellow Rose in a blue jar in 2003 to 3561.42 USD for PORTRAIT OF A LADY in 2004 , based on the size and medium of the artwork.