C. GJ.3, 1860 blue, used with mute 16-parallel-bar cancel of Corrientes (used in the first period of usage), VF quality, rare, with Solari certificate. (Image)

C. GJ.6, yellow, rare example with almost dry impresion (without ink), completely blurred and illegible, franking a folded cover to Goya with pen cancel of Mercedes, fantastic! (Image)

C. GJ.8, dull rose, franking (on back) a mourning cover sent to Mburucuyá, with pen cancel of Corrientes, VF quality, with Alberto Solari certificate. (Image)