Hi Helen,
Those larger denomination bills with the Emperors and Catherine the Great are really beautiful. There are also two different 500-Ruble bills which depict Peter the Great, one issued in 1898 and the second one was issued in 1912.
Just to have these bills as collectors pieces is really nice, regardless of their market value. I enjoy my collection just for that reason.
I do not have any currency from
Yujnaya Rossiya. Your bill might actually belong to General Wrangel's Army.