Argentina, 1864, 15c blue, perf'd, block of 4, oval town cancels, exceptional centering, strong bold color, Extremely Fine, a wonderful rare block, especially so in sound condition, ex Sabatini. Scott No. 13  Estimate $750 - 1,000. $0 (Image)

Argentina, 1864, 15c blue, perf'd, showing doubling in letters and frameline, on cover front to Tucuman, tied by Buenos Ayres cds, Very Fine, ex Sabatini, Dale-Lichtenstein. Scott No. 13  Estimate $200 - 300. $0 (Image)