Waterproofing Company, 1933-1934

Provided labor and materials necessary to install complete "Cow Bay" cement waterproofing on the outside of the north wall at the corbell, the new 71st Street foundation walls, and the walls and floor of the old sidewalk vault, 71st Street at the Frick Art Reference Library. Installed waterproof cement under the plinth blocks and all stone columns between the Arcade and Court of The Frick Collection.