Format explanations etc.
Kostów
Kostau
(Kluczbork) 5110 1809 OP
Civil registry
USC Byczyna
State Archive in Opole
B 1874-
M 1874-
D 1874-
LDS microfilms
B 1874-1884 M 1874-1880
2035383 #28-45
M 1881-1884 D 1874-1884
2035384 #1-15