In 1947 Honduras issued a set of two stamps with the same design to honor the First International Conference of Archaeology of the Caribbean, which was held in Tegucigalpa in 1946.
     The design features a map of Honduras and surrounding countries, ancient monuments, a monumental turle and a conference badge, which I think is a Mayan ball court marker
     The carved standing stone on the left of the stamp is Stele C at Copán where the Maya lived from 1300 b.c. until the time of the Spanish conquest.