WONDERFUL PIECE OF ROSEVILLE OHIO POTTERY, A BLUE SPONGE WARE DESIGN MIXING BOWL, PRODUCED BY ROBINSON RANSBOTTOM. What a great looking piece of pottery. A perfect size for so many uses in the kitchen, or what a great display piece! Classic yellow ware colored clay, hand applied sponge ware designs in royal blue, clear high gloss glazing. Classic style and design. This lovely mixing bowl measures about 9 1/4" in diameter at the top, stands 5 1/4" tall. Robinson Ransbottom created many different styles and designs of mixing bowls, so there would be an 8", 10, and a 14" size to match this bowl.....your hunt for the other sizes for your collection begins here! This wonderful mixing bowl is in very good condition, free of chips or cracks, a tiny glaze flake on the rim, as shown in the photos. This beautiful piece of pottery has the old ink stamp mark on the bottom, "RRP CO ROSEVILLE, O. USA", which was used about 40 years ago. Robinson Ransbottom Pottery was a leader in the Roseville Ohio, Ohio Valley area, but they ceased production, having closed their doors after 125+ years of operation. There are not many USA pottery companies remaining in operation any more. What a great addition this mixing bowl will make to your pottery collection!!!!!