For the love of God, we know about the Roman d20!

[Altalazar]

Hey, did anyone see that auction with that Roman d20? Er, ok, nevermind...

But don't forget the greeks! And their top-secret die - the dodecahedran (d12 to us) That really was a government secret for a while...

 

[MerakSpielman]

Well, I suppose all governments just have to have something that they get to hide and keep top secret...