Time Traveller

Wandering back to the saloon, you find that Six-Gun Mike and his cronies seem to have disappeared, to your relief. You ignore the curious stares of the other patrons and walk up to the bar.

"What'll it be, sir?" The bartender asks, wiping down the bar with a dirty cloth. You look around and notice that the woman is sitting with a group of men playing poker. You may as well have a drink.

What do you order?