Indian Princess Head $1 GOLD COIN Type III LOVE TOKEN! 1856-89 "R.A.B." w/Loop
 
The gold $1 coin was composed of 1.672 grams of .900 gold (net weight .04837 oz. of pure gold) when minted. 15mm in diameter 
 
Last photo shown for comparison-  between Type III large head on the left vs. Type II Small Head on the right.