Antique Jackson restaurant ware, USA made. circa 1917 thru 1930's-4 piece set

Made by Jackson USA vitrified china restaurant ware is a 4 piece set. These pieces are antique made during 1917 to 1940's. The pitcher measures, 7.5" tall 7.5" wide and sugar bowl (no lid) is 3" tall 2.5" wide, small syrup server is 2.5" tall 2.5" wide. Coffee cup 3" tall, 5.5" wide. No chips or crackes. Shows some sign of ware,however, all pieces are in great condition considering their age. Great find for collectors.