The product is a 1983 Mexico 1 Silver Onza coin graded as MS 66 by NGC. This coin has not been circulated and is made of 0.999 silver with a fineness of 99.9%. It was minted in Mexico and is part of the historical period of Mexico from 1905 to the present day. The certification number for this coin is 2897851-002, making it a valuable and collectible piece for numismatists and coin enthusiasts.