The standard plum in the East for the last 50 years. Released by the Cornell-Geneva station in 1926; Agen x Grand Duke. Reliable cropper. Ripens about the same time as Longjohn in Geneva -- second week in September. Medium size; freestone most years; pit shatters in some seasons. Tree hardy; resistant to bacterial spot but quite susceptible to black knot. SELF-FERTILE and an excellent pollenizer.