1868, thin figures 100 c. black on brown, horizontal pair, with thick figures 12 c. and 50 c., tied by Durango c.d.s., with adjacent "CERTIFICADO EN DURANGO SALE EN 11 DE Febro DE 1871" to registered cover front to Guichapa. Receipt on front. Fine and rare. Signed Bash, certificate MEPSI (1995)
