
Here is a crazy shaped Indian coin. This was a pice that was minted in 1940s. As you can notice, it is minted in a ring shape. I have no idea why this was done so; probably just trying to save some copper while still giving illusion of a big one pice coin. "Pice" was the spelling used for "paisa" (पैसा), which then was the 64th part of the rupee. The conversion to metric happened much later, around 1957, when the new paisa was made the 100th part of the rupee.
On the obverse (that is the front side), you can see "PICE" and "INDIA" written is the top half with a crown in between. In the bottom half, we have "एक पैसा" (ek paisa, meaning one pice) in Hindi, and same in Urdu with the year 1945 in between.
Curiously, the bust of the king (then George VI) is missing which was commonly found on reverse of all coins a little before this time.

Of course, one cannot miss the gaping hole right in the middle of the coin.