Matheus Van Helmont (after) ( 1623 - 1679 ) was a Flemish painter. Matheus Van Helmont (after) s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 4250.3 USD for AN INTERIOR SCENE WITH AN ALCHEMIST AND HIS ASSISTANT, TOGETHER WITH A WOMAN BEHIND A SPINNING WHEEL AND A CAT in 2004