100 Roubles North Caucasian Socialist Soviet Republic

The North Caucasian Soviet Republic existed for barely a year — proclaimed in January 1918 and effectively destroyed by Denikin's Volunteer Army before the end of 1919. Notes like this one were emergency instruments issued by a government fighting a civil war on multiple fronts simultaneously, against both White forces and rival regional powers in the Caucasus. Printing infrastructure was whatever happened to be locally available, which shows in the crude production quality endemic to the series.

P#S453 falls within the provisional issues that Soviet scholarship later grouped under "White Sea–Siberian" regional emissions, though the North Caucasian series is catalogued separately. Surviving examples tend to show heavy wear — this was a working note in genuinely chaotic conditions, not a reserve issue.