No Copyright - United States
No known copyright restrictions.
No known restrictions on use.
Notes:
Title from item.
Additional information on back of item: Interior of test room showing humidity and heat units. In the upper center is the humidifier consisting of a fan which forces air through a series of cloths, the ends of which are immersed in water. Directly underneath is the heat unit consisting of a bank of electric light bulbs with a curved metal reflector. On the bench is the sand testing machine used to measure surface drying rates of artists' oil paints.
Notes (date):
Date supplied by curator.
This date is inferred.
Notes (funding):
Federal Art Project, Work Projects Administration for Massachusetts, Federal Works Agency.