Location February 1942:
February 1942 Luggage & Leather Goods, page 50
Factory and Showroom Removals
"Abe Schocket of Rainbow Leather Goods, Inc., announces factory and showroom changes. The factory is now located at 18-22 West 20th Street, and for the convenience of buyers, a new showroom has been taken at 347 Fifth Avenue."
Full page in "Handbag Buyer" June 1949, page 69 features a Rainbow Leather bag made of Plasticsuede by Pine Hill Products.