ARGENTINA. Banco de la Provincia de Buenos Aires. 10 Pesos Oro, 1.1.1883. P-S539s. Specimen. PMG Gem Uncirculated 66 EPQ.Specimen serial numbers, overprints and punch cancels. A exceedingly difficult design in any form and this specimen is the lone piece PMG has graded for the catalog number. A deep blue under-print and appealing wagon train vignette at center. Technically outstanding and a perfect match to the 20 Pesos Oro note we are also offering.PMG Gem Uncirculated 66 EPQ.