Venezuela: Very interesting and probably unique progressive proof print with an unfinished front design of the 10 Bolivares 1986 Banco Central de Venezuela P.61a proof, but on back it shows the design of the 1000 Colones Banco Central de Costa Rica 1986 P.256a proof. Very exceptional print with two Banknotes from different countries in one note. PMG graded 65 Gem Uncirculated EPQ