Here is a vintage GREAVES of Historic Niagara, Pure RED CURRANT JELLY, small empty glass jar. William Greaves, established 1927, Niagara on the Lake, Ontario. I think this could be from the 1940's, has a paper label. Measures about 2 5/8" tall and 1 7/8" diameter across the base. Originally held 2 1/2 ounces.