Set of four Vintage Anchor Hocking Tartan Dark Green (Olive) Flat Iced Tea drinking glasses/tumblers.  Each measures 6 1/4" tall with a mouth opening diameter of 3".  Heavy, weighted bottom, thick walls, straight contour.  Bold, textured grid design mimics a classic plaid motif.  Made in USA in the 1950s-1960s.   Impressed Anchor Hocking logo on bottoms.  Excellent condition.  No visible chips, cracks or damage other than noted.  Smoke-free home.