You're a better man than I, thetrasher. I looked everywhere and never managed to find that.
It must be one of those prefs you can set by default. The overwhelming majority of my lr=213 searches come with a referer string that says in full
OK, so they're looking my domain, but specifically that version of it which is most applicable to Moscow? :)
:: detour to spell out non-213 results (I don't read Cyrillic) ::
Wonder why St Petersburg (which I am sorry to say I still think of as Leningrad) is listed twice?