H.G.Wells' Little Wars is still being published apparently (SkirmisherPublishing). Has anyone given it a go?
I've just scanned the preview of the pdf on RPGnow and there a some wonderful lines from Wells' intro about gaming in general and the sorts of people who play his games.
Or to give it its full name:
‘Little Wars; a game for boys from twelve years of age to one hundred and fifty and for that more intelligent sort of girl who likes boys' games and books'