This a lovely example of the very coveted 2 Reales series from the Central American Republic, with this specimen being one of less than 20 to be given AU status, and only one of 3 in AU details at NGC with some INCREDIBLE rainbow toning around all of the obverse and the entirety of the reverse! Toning like this on these pieces is so incredibly rare and this coloration of violet-gold toning is so UNIQUE!. In Almost Uncirculated these examples are almost UNSEEN and whenever they come to market command an immense value! 
Feel free to message me with any questions/offers!