Green. Text in Swedish on left, in Finnish on right. Numeral 25 in centre. Series year 1866 in bottom centre. Denomination in words in Russian text under it.
Reverse description
Large numeral 25. Denomination in words in Russian, French, German, and English. Warning against forgery in Swedish and Finnish in box at bottom.
Signature(s)
Protection type
Protection description
Obverse lettering
Suomen Yhdyspankki
Maksaa vaadittaissa tästä setelistä
Viisikolmatta Markkaa. (Translation: Union Bank of Finland will pay, on demand, from this banknote Twenty Five Marks)
Reverse lettering
ДВАДЦАТЬ ПЯТЬ МАРКЪ
Vingtcinq Marcs, Fünfundzwanzig Mark, Twenty-Five Mark
Tämän setelin mukaaminen tahi väärentäminen sekä semmoisen rahan
kauppaaminen rangaistaan Lain mukaan. (Translation: [In Russian, French, German, and English] Twenty Five Marks. [In Swedish and Finnish] Altering or forging this note and passing such money is punishable by law.)