Very pretty antique glass salt shaker is from Fostoria, and is in the Flower and Scroll pattern.  It is ivory with green tints, and an embossed and hand painted floral design.  Just over 3-1/4" high with the lid, it has the rough cut top opening that is usual with these antique shakers.  This design is pictured on page 87 of the 1996 edition of Lechner's World of Salt Shakers.