Postage stamps and postal history of Mexico The regency had previously changed the official currency under which one peso equaled 8 reales to a decimal system in which one peso equaled 100 centavos. In making the conversion postal rates were rounded up, for example, the rate of one real being equal to 12.5 centavos was rounded up to 13 centavos. The stamps, as a result, were issued in values of 7c, 13c, 25c, and 50c. These stamps were issued with the year and invoice number and with or without the district name, but some issued in exchange for Eagle stamps were issued only with the Mexico City
Silver and gold diadem from the tomb of Philip II able to fill it with the metals they wished to use. The gilding process that most likely would have been used on this diadem would have involved gold leaf being burnished to the silver. The adhesion of gold with the use of heat helps promote interdiffusion with the underlying metals which usually consist silver or copper. While examining the diadem the most notable feature is the Herakles knot located on the front imitating a cloth headband. The knot is a reminder that the Macedonian king was a religious leader and direct descendant of the Greek hero and his father Zeus,