1860, issue 3c ”azul claro” position 6 , wide margins all around, showing a file fold at top, otherwise fine, tied by VERY RARE ”16 BARRAS” OF CORRIENTES on extremely fine entire letter ”Corrientes Enero 25 1864” sent to Goya. This cover mentioned by Victor Kneitschel (1958 p. 187) as THE LATEST RECORDED USAGE OF THIS STAMP DURING THE FIRST PERIOD. A CORRIENTES RARITY. Signed by the expert Pascal Scheller (Paris). Bought for 900 $ from Victor Kneitschel in Nov. 1960.