The Coin From Where App randomly displays 3 coins and let you guess which geography does it belong to, by simply tapping on one of the coins.
The coins being shown may be current or no longer in use already, but still good to know it.
There are 10 trials for each round and 10 marks awarded for correct answer while 2 marks deducted if the answer is wrong.
At the same time, 60 seconds is allowed for each set of game.
You can play as many times as you want.
Have fun !