What could the Roman dodecahedron have been used for?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical conceptsA 12-sided, 1,700-year-old object with no known purpose was found in Lincolnshire last summer and has just gone on display at Lincoln Museum. What could it have been used for? Paul Elliott, by emailPost your answers (and new questions) below or send them to [email protected]. A selection will be published next Sunday. C