This 2011 Mexican Libertad is 1 ounce of pure silver and has been certified by NGC with a grade of MS 69. The coin features beautiful design and intricate details, making it an excellent addition to any collection. With a KM number of 639, this coin is highly sought after by collectors and investors alike. The coin is uncirculated and struck as a business strike type. It was produced by the Mexican Mint, a renowned brand in the industry. Invest in this stunning piece of bullion today!