10c Brown, Silk Fibers (161 var). Unused (no gum), rich color, wide margins, Very Fine, this variety is identified by its tiny dark silk fibers throughout the paper, visible only under magnification, it is also found on most of the other Continental printings, including the 1875 Issue, but not among the National and American printings, with 1983 P.F. certificate, Scott Retail as with gum

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