Russian to English Art/Literary Government / Politics

I need to rename the USA, just like that :-))

This name occurs in a small half-historical, half-literary essay on the political views, opinions and tendencies among the Russian aristocracy circa 1900s. This name is of course different from the contemporary Russian version so the standard "USA" doesn't appear suitable. But I can't think of a good English-language equivalent for that one.

The name is only mentioned a few times in passing, no special emphasis, although the general tone is a slightly condescending one, of the kind you would use speaking of some remote, little-known province of no special significance. The name used is always the same by the way, no others used.

So I'm looking for an alternative name circa 1900s suitable for use by this kind of social circles. Probably British or Continental European in origin?

I was thinking along the lines of "American Colonies" perhaps, except that it's a wrong historical period of course. (Or would some of the older British generations of the time still use it?).

So, basically I'm at a loss for the name, suggestions welcome.