It has been restored for the same event as the 3 Tatras that I've previously mentioned. Apparently, this was the original livery, with the exception that it had a bigger logo in the front, and also the logo was applied diagonally across each of the three sections (on the left side). Not to mention, the top display was a matrix dotted one, instead of the current orange LED display. Here's a comparison between the original and the attempted restoration, and here's a better picture of the original (courtesy of Metrou Ușor forum).

Source (and more pics): mobilitate.eu