100 Roubles Kuban Soviet Republic

The Kuban Soviet Republic existed for only a matter of months in 1918, a short-lived Bolshevik entity in the North Caucasus that found itself issuing its own currency while simultaneously being contested by Don Cossack forces and early Volunteer Army units. Local note production was a necessity — central Soviet supply lines were unreliable at best, severed at worst — and the region's administrations printed their own instruments throughout the Civil War period regardless of political stripe.

P#S494 falls within the broader "S" classification covering Russian Civil War regional issues, a category where provenance and issuing authority can be genuinely difficult to pin down. Surviving examples are not common, largely because the Kuban Soviet administration collapsed before any organized recall or redemption was possible.