1858 120c gray blue, margins all around, tied by oval Montevideo departure pmk on large piece of cover/wrapper addressed to Buenos Aires, stamp lifted for inspection and replaced, v.f., signed Diena (Cat No. 4) (Image)

Est.US$1,500

1861 (4 May) outer FL franked with 180c green, margins all around, tied oval Montevideo departure pmk and addressed to Buenos Aires, signed on back by Diaz "11 - tipo 7" (Cat No. 11) (Image)

Est.US$750

1862 (17 Mar) large part of outer FL from Montevideo to Buenos Aires, franked with 1859 Thin Figures 240c vermilion, large margins showing portions of adjoining stamps, used in combination with 1860 Thick Figures, horizontal pair of 80c yellow, also with margins all around, tied by oval departure pmks, endorsed "Per Mississippi" (of the River Plata Line Montevideo-Buenos Aires), parts of the lettersheet added on back, still fresh and beautiful combination cover, ex-E.J.Lee, with 1972 Diena certificate (Cat No. 12,14) (Image)

Est.US$12,000

1862 (26 Mar) FL from Montevideo to Buenos Aires, franked with 3x60c Suns, Thick Numerals, gray brown shades, sub-type 6A, tied by oval Montevideo departure pmks, endorsed "Par Mississippi", some filing creasing at right, just through one of the adhesives, neat oval merchant's cachet at left, fine and attractive item, with 2008 Carlos Hernandez Rocha certificate (Cat No. 13a) (Image)

Est.US$1,500