Russia and the successor states
The Russian Empire, the governments that broke from it, and the states that outlived it — Russia, Ukraine, Georgia, Azerbaijan and Turkestan.
Registry
273 notes in four albums. Each runs chronologically, so paging through one is a single story told by however many governments happened to be issuing at the time.
The Russian Empire, the governments that broke from it, and the states that outlived it — Russia, Ukraine, Georgia, Azerbaijan and Turkestan.
Reichsbank notes across three regimes, the Notgeld of individual towns, occupation currency and camp scrip.
A state restored after 123 years of partition, its first marks, and banknotes overprinted by the underground opposition of the 1980s.
Everything else — Austria-Hungary, Finland, France, Italy, China and further afield.