100 Markkaa

Finland was still a Grand Duchy under Russian imperial rule when this note was issued — the Suomen Pankki operated with a degree of autonomy unusual for a subject territory, but the political pressure was real. The 1909 series came during the so-called "second period of oppression," when Russian authorities were actively pushing to curtail Finnish institutional independence, making the continued operation of a distinctly Finnish central bank quietly significant.

The suffix designation E22 within the Pick 19 series indicates a specific signature combination, useful for pinning down the precise issuing period within a run that stretched across nearly a decade of administrative turbulence.