A labret is a kind of plug inserted through a piercing below the lower lip. In the world of the Aztecs and their contemporaries in Mexico ca. 1300-1520 CE, the labret was usually a sign of status or even ethnic identity. Labrets were often made of materials symbolic of the importance of their wearer, with the most important people wearing lip plugs of gold, rock crystal, or perhaps jade; while commoners might wear ones of wood or bone. This example is made from obsidian, a volcanic glass that was a frequently-used material in Central Mexico. As a brittle glass, it is extremely difficult to work with, to shape it into the rounded forms shown here. However, the lip plug as we see it today seems to be a modern combination of two distinct pieces, one in the shape of a bird’s head and the other the simple flanged shape of the plug itself. When the Conservation department x-rayed this piece, they found that a modern screw has been inserted to join these two pieces, both of which do seem to be ancient. It is possible that the appearance of this lip plug has more to do with modern tastes than ancient fashion.