This is what I remember about Polychrome.. I may make additions or corrections in the future.
After a few weeks an employment agency sent me to Polychrome Corporation that was located at the corner of Alexandra and Ashburton. I was interviewed by Gregory Halpern and hired. At that time they were coating tissue to be used as a duplicating (mimeograph) stencil. The lot and building were bought from an oil company. There was a story and half main building. A brick building which we designated as the ink house and a row of sheds. Mr. Halpern had started Polychrome in lower Manhattan. First to rework excess printing ink. He with Jimmy Marr, who coated duplicating stencils in Connecticut and Louis Mestre, a Cuban who had invented the night deposit box for banks made a mimeograph duplicator called the style. When I arrived at Polychrome this had been discontinued .