Vintage Frankoma Bluebonnet Pottery 8" Pitcher with Cork Top . Frankoma was founded in 1933 in Norman, Oklahoma, by John Frank, who was a professor of ceramics at the University of Oklahoma from 1927 to 1936. The name Frankoma was derived from "Frank" plus the last three letters of "Oklahoma". . The bluebonnet motif on this vintage Frankoma pitcher is in beautiful condition . This small-scale pitcher, which can also be used as a vase, is in pristine condition, including the cork and the inside .Marked on the bottom “Frankoma 835”, the vase measures approximately 8”h x 4”w