This commemorative stamp from Uruguay, issued in 1966, celebrates the centenary of the classic “Cifras” numeral stamps first introduced in the 19th century. The design reproduces two historic early issues of the Republic of Uruguay, highlighting their distinctive numeral typography and the national coat of arms motif. Framed within a bold red border, the stamp emphasizes Uruguay’s postal heritage and the city of Montevideo, where the original stamps were produced. Such issues are popular among collectors specializing in classic stamp anniversaries and postal history commemoratives.