Will it be heads or tails? Just learnt that numismatists call the heads side the obverse, and the tails side the reverse. After the nth spin of the coin and after zooming in on the image I was captivated by the lines generated by the edge (and again, this is sometimes referred to as the "third side").I had a further surprise in another photo of this spinning €2 coin. In three of the shots where the reflection is seen, to my amazement the shiny surface reflected the opposite side of the coin. So the number "2" is clearly seen on the coin while its reflection shows the reverse.