Mexico, Campeche, 1876, 5c Gray Blue & Blue (1), used, 1877 boxed h.s. cancel, overall toning of the paper, ms. control mark and portions of blue oval handstamps (as well as the cancellation) are all slightly touched up to enhance appearance, still a very presentable example of this scarce stamp, with 1961 Friedl certificate, Scott retail $2,000.00 est.