The last of the aurochs (that was recorded anyway) died relatively recently, in the 17th or 18th century, in Poland. During the Third Reich, there was a claim that the species had been revived via selective breeding, one of that line is probably what is shown there.
I read that the last one was killed, during WW1,in Eastern Europe, possibly Poland.
For all I know it could be an artist who fashioned a facsimile that looks like a live animal, but isn't at all. I figured that the best I could have hoped for would be merely a rendering. 🙂