500 Drachmas (1.11.1968) in olive on multicolor unpt with Relief of Eleusis at center. Serial no "07Λ 999999" (Solid #9s). The display frequency of solid serial numbers is 1 in 111111 banknotes. Inside plastic folder by PMG "Superb Gem Unc 68 - EPQ". Top grade in PMG. (Pick 197a).