![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Pentagon-dodeca%25C3%25ABder_in_brons%252C_150_tot_400_NC%252C_vindplaats-_Tongeren%252C_Leopoldwal%252C_1939%252C_collectie_Gallo-Romeins_Museum_Tongeren%252C_4002.jpg/640px-Pentagon-dodeca%25C3%25ABder_in_brons%252C_150_tot_400_NC%252C_vindplaats-_Tongeren%252C_Leopoldwal%252C_1939%252C_collectie_Gallo-Romeins_Museum_Tongeren%252C_4002.jpg&w=640&q=50)
Roman dodecahedron
Small dodecahedral object / From Wikipedia, the free encyclopedia
A Roman dodecahedron or Gallo-Roman dodecahedron[1][2] is a small hollow object made of copper alloy which has been cast into a regular dodecahedral shape with twelve flat pentagonal faces. Each face has a circular hole of varying diameter in the middle, the holes connecting to the hollow center, and each corner has a protruding knob.[1] Roman dodecahedra date from the 2nd to 4th centuries AD and their purpose remains unknown.[1] They rarely show signs of wear, and do not have any inscribed numbers or letters.[3]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Pentagon-dodeca%C3%ABder_in_brons%2C_150_tot_400_NC%2C_vindplaats-_Tongeren%2C_Leopoldwal%2C_1939%2C_collectie_Gallo-Romeins_Museum_Tongeren%2C_4002.jpg/640px-Pentagon-dodeca%C3%ABder_in_brons%2C_150_tot_400_NC%2C_vindplaats-_Tongeren%2C_Leopoldwal%2C_1939%2C_collectie_Gallo-Romeins_Museum_Tongeren%2C_4002.jpg)