Here is a bit of a mystery - Srch is a municipality in Pardubice region
(Pardubice okres) in Czechia; its flag was approved 5 October 2004, and
published in Petr Exner's Vexillological Lexicon of Czech municipal flags
2004.
Description: horizontal white over blue, proportioned c. 4:1; the dividing
line is wavy; in top hoist a hornet between two green oakleaves.
(Sršeň = hornet - so is this a humming, zooming or bumbling
flag?)
The Coat of Arms is identical, see here.
Jarig Bakker, 8 Nov 2007