Thanks! Funny thing about this photo: the display panel wasn't supposed to be showing "ZÁJAZD" but the computer froze, so the driver went looking for the batteries to cut the power, but he didn't know where they were. Eventually he managed to get it working some other way, and put up the correct line number, which was 50.
Also, the turn signal of this bus wasn't blinking as it should, instead it stayed on uninterrupted.
A friend of mine taped the ride in this bus...from inside. Nothing interesting happens in the video but it can give you an idea what a 25 years old natural gas powered Karosa bus engine sounds like.