Dear Amit,
A check of WorldCat using the words magyarorszagi symbolikus in the title search indicates this was an annual periodical or yearbook for Hungarian Freemasons. Â That suggests your great-great-uncle was a Freemason and that the book may have some information on him. Â The bibliographical record for this periodical is extremely confusing and individual year volumes are rarely cataloged so I can't tell if it's held by a library in WorldCat. Â I suggest contacting the Hungarian National Library, which should have a full run of this periodical.
Good luck in your research.
Yours,
Jenny Schwartzberg
The Newberry Library
Chicago, IL
USA