5c, 8c Pan-American (297 two, 298). Original gum, each with vignette strongly shifted to one side, one 5c dramatic shift to left, other strongly to right, 8c strongly down and to the right, Fine centering, a rare trio of significant vignette shifts on these denomination, collectors are familiar with the shifts found on the 1c-2c denominations but strong shifts on the higher denominations are much more scarce

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