Passau is a town (50,566 inhabitants end 2015) in Lower Bavaria, Germany, at the border with Austria. It is also known as the Dreiflüssestadt or Town of Three Rivers, because the Danube is joined at Passau by the Inn from the south and the Ilz from the north.
It used stamps issued by the Bavaria (Bayern) State until 1920.
German Empire era
Bavaria State era
The Kingdom of Bavaria opened a post office (k.b. Postamt) in 1808. It used numerals 260 and 385 (after 1861) within a mill wheel (Mühlrad).