Republic gold 2 Colones 1916-(P) MS-65 NGC.  The only coin struck for Costa Rica in 1916.
 
Bust of Columbus facing right on the obverse
Arms of Costa Rica on the reverse (you can see the Atlantic with a boat, the mountains of Costa Rica, and then the Pacific with another boat and the sun setting on the far side)
 
Struck in the USA at the Philadelphia mint!  If you are collecting a full set of US minted coins from 1916, you need this one.  And one from Ecuador, the Philippines, Panama, and Cuba.
 
KM139
A scarce date
Only 29 graded at NGC (26) and PCGS (3) together*
Mintage of only 5,000
 
Composition: Gold
Fineness: 0.9000
Weight: 1.5560g
AGW: 0.045oz
 
* Note that if you review the PCGS population, it shows two more coins than it should.
PCGS number 84141347 is listed as 1916 and counts towards the PCGS as MS64 for 1916, but, if you look at their own photo of the coin on the PCGS website for this coin, it is dated 1900.
 
PCGS number 84141346 is also counted in the PCGS population as the sole MS65 there, but, it is THIS COIN and it has been crossed over to NGC.  I did it.  NGC has updated their population to show this, PCGS still has not.
 
So, there are 26 graded examples at NGC and only 3 at PCGS.