Here is a set of 9 vintage restaurant ware divided dinner grill plates by Texas Ware in their 136 style. They are made of heavy duty melamine in a beige (light brown) color. Each one measures 10" in diameter and is marked on the bottom "Plastics Manufacturing Co. 136 Texas Ware Dallas, Texas USA". These plates were considered heavy duty and suitable for cafeterias, restaurants, etc. Each one has 3 compartments (1 main, 2 side dishes) with a raised divided foot so that the height of the plate is about 3/4”. In addition, each plate has 6 "buttons" on the underside of the rim which helps to separate the plates when stacking and to prevent scratches.
These are clean plates and there are no breaks, cracks, or chips. There are utensil scratches and minor marks. The last photo was taken at an angle without flash to bring this out--this is the worst of the plates. See high resolution photos for more and use the magnify feature.