Help for Victoria I suppose it reads this with the correct spelling 80 CTS CORREO AEREO MEXICO This means the price of 80 cents about 0 03 pounds air mail Mexico Valleres De Impresi n De Estampillas Y Valores M xico I don t exactly know the meaning of valleres but I think that s the place where the stamps are printed it literally would read printing workshops of stamps and values Mexico I hope I shine a little light on that matter PS and is not Mexican is Spanish Mexican names the Nahuatl language spoken before the 16th century in Tenochtitlan You can see the Keane article in Nahuatl here