Popular AMERICAI Reverse. B-11, BB-191, R.4, XF45 NGC. Bowers Die State II. This is the scarcer of two varieties that share the popular AMERICAI reverse. BB-191 ranks among the more challenging 1800 dollars to acquire, with Bowers estimating 200 to 350 examples extant. Only a handful of those are known in AU condition or higher. This is a silver-gray Choice XF Draped Bust dollar. NGC Price Guide...$4600. PCGS Price Guide...$5250.