I think you mean [former] Czechoslovakia, right?
What other document do you have on this ancestor? By any chance he was Byzantine Catholic?
Bobonich, Gyorgy Juhaszlak, Hungary 17 1889 1906
Bobonics, Gyorgy Okormeso 26 1880 1906
By any chance of these could be your ancestor's NY Ellis Island arrival manifest?
the location Okormezo, Maramaros megye, Hungary [short while Czechoslovakia www.cgsi.org
] presently Mizhhir'ia, Ukraine. http://www.jewishgen.org/Communities/LocTown.asp
Mezhgor’ye, Volové, Volovets, Volovo, Mizhhir”ya populated place
48°31' N 23°31' E
E M U G
340.8 miles WSW of Kyyiv 50°26' N 30°31' E