50 drx of 1928 Third Provisional issue (ND 1928 - old date 13.5.1927, overprint on Pick #90) in brown on orange and green unpt with "Portrait of G. Stavros" at center. Serial no "ΝΦ016 485675". Red ovpt "ΤΡΑΠΕΖΑ ΤΗΣ ΕΛΛΑΔΟΣ". Inside plastic folder by PMG "About Uncirculated 50 - Foreign Substance, Annotation". (Pick 97a).