just have seen more / look at the trousers!!!
he wears the same like in this link.think the complete uniform fits! from right the 3rd person!
Ungarischer InfanterieRegimentsGefreiter with Paradeuniform
http://www.kuk-wehrmacht.de/img/oe1898_03.jpg

think we have it now....
look also here are the same trousers.
http://de.wikipedia.org/w/index.php?title=Datei:K.u._Honved....
http://de.wikipedia.org/wiki/K.u._Landwehr
http://de.wikipedia.org/wiki/K.u._Landwehr#Infanterieregimen...

Soproner HIR 18
Soproner HonvedInfanterieRegiment 18
Kommandant: Oberst Ludwig Brunswik von Korompa – Korompai Brunswick Lajos ezredes

maps
http://www.kuk-wehrmacht.de/regiment/img/oegarnkart1898.jpg
http://www.mlorenz.at/images/militaerterritorialeinteilung_1...
nr. 76 Sopron south of Wien/Vienna

Sopron on border of present Austria
http://de.wikipedia.org/wiki/Sopron
http://en.wikipedia.org/wiki/Sopron
http://maps.google.at/maps?hl=de&q=sopron&ie=UTF-8&a...