Fostoria glassware was produced in the US, first at Fostoria Ohio in the late 1800s. The company moved to Virginia and produced glassware there from 1915 until the late 1980s. In the 1920s Fostoria offered colored glass including green, amber and blue, and began to advertise in popular women's magazines.
For more information, look for "Fostoria: Serving the American Table 1887-1986" by Leslie Pina or "Fostoria: An Identification and Value Guide of Pressed, Blown & Hand Molded Shapes" by Ann Kerr. These are older books that you can find for a low price. Of course, current values will not be available in an older book.
Wash your Fostoria glassware by hand. Older dishware and glassware should not be cleaned in a dishwasher.