Mexico, 1890, 25c carmine, with 1890, 6c vermilion, pair on 1893 registered front paying the 37c official rate (25c registration + quadruple official rate for 30 grams), Jalacingo to Jalapa, there is a request for the return of covers and stamps as the 25c stamp color is very close to the 2c issue (should be considered a proof), Very Fine. Scott No. 221 var. + 217  Estimate $100 - 150. $0 (Image)