White Bakelite Ribbed Phone or Cable Wall Plate - NOS

These creamy plates are what we call New Old Stock. New because they have never been used and Old because they were made a long time ago. They were manufactured by Sierra Electric and are in mint condition.  

These plates are sold individually in their original wrappers with screws. One was taken out of the package for the photo.  

4-1/2” high x 2-3/4” wide