Oseček is a municipality in the Central Bohemian region (Nymburk okres)
in Czechia. Its flag was adopted 5 October 2004, and published in Petr
Exner's Vexillological Lexicon of Czech Municipal Flags 2004.
The arms are at the impressive, but empty municipal
Flagdescription: white; at the hoist a red cross, separated from the
fly by a vertical wavy blue stripe. at the fly a brown stump with an axe
Arms: idem, turned 90 degrees.
Jarig Bakker, 8 Oct 2007