King Line SiLite Dishes green vintage 10"plate and 61/2" appetizer plate

Vintage plates. 10 inch plate is made by King line. 6 1/2 inch plate is made by SiLite.  Both are in excellent condition. Shiny and look unused. The small plate says Chicago on the back. Not much to find out about these plates. Seems there are school cafeteria plates maybe? One large plate one small plate inset.  nice green color.