This is a great mystery bottle/vase with a thick matte green glaze clearly made in the early 20th Century. It is a hefty little turned piece marked on the bottom with blue ink under a clear over-glaze. It is signed with the initials JB but I have not been able to identify the maker. It is 5 tall and in excellent vintage condition.The item "Matte Green Early 20th Cen. Mystery Vase / ala Grueby /Arts Crafts Pottery" is in sale since Sunday, May 12, 2019. This item is in the category "Pottery & Glass\Pottery & China\Art Pottery\Other American Pottery". The seller is "lots-of-pots" and is located in Deep South. This item can be shipped to United States.