2016 DE Tanzania Silver 3D Exotic Butterflies Proof Silver Brilliant Uncirculated Photos in this listing may or may not be stock photos. The photos are meant to be an indication of the product you will receive. Coin&nbsp;Highlights: Contains .803 oz of .999 fine&nbsp;Silver. Comes in a beautiful wood box and with a certificate of authenticity. Mintage of only 2 500. Obverse: Depicts the Tanzania emblem.