Improvised abacus? Are there Latin references to betting at Roman amphitheatres, or modern references to Roman use of abaci? Or was it a gaming board?

I'm working on pottery ['samian ware' or terra sigillata] from a Roman amphitheatre, amongst which the epigraphist has suggested one incised base as possibly representing an improvised abacus, if...

06 June 2015 8,665 69 View