97H Barrels, sorghum brown glaze. S7/P7 double diamond hole set. Type one, Ada clay. Frankoma used this glaze from 1951-1954 so this set is probably not available on red clay, but the possiblity exists. Note that this version of Ada clay is somewhat dark and has a slight granularity to it. I believe this is the last of the Ada clay probably from 1953.