Anyone have any info on what model the T-55 is in the House of Terror in Budapest, Hungary? Also any history of it as I would like to do my Tamiya model up to represent something from the era.

It's a Polish made T-54, rebuilt to T-55 standard. As used by the Hungarians. It would need to have the Polish engine deck made (The Tamiya kit only includes the Russian deck), T-54 style weld interlocks on the glacis/bow join, and lots of other little bits. Hope that helps.