There is no makers mark to identify the studio it came from but it is similar to pottery crafted by Grueby and other well-known craft artists. The bottom has three normal glaze pops on the inside and outside. In addition, there is a tiny barely visible chip on the inside of the rim. It measures 6" diameter at the base and 6.5" at the rim.The item "Beautiful Matte Green Arts and Crafts Bowl, Unknown Maker" is in sale since Tuesday, August 24, 2021. This item is in the category "Pottery & Glass\Pottery & China\Art Pottery\Studio/ Handcrafted Pottery". The seller is "rowbikerunski" and is located in West Hartford, Connecticut. This item can be shipped to United States.