The 2008 1oz Silver American Eagle Proof Coin is struck by United States Mint as a proof issue with 1oz of .999 fine metal content. It forms part of the Silver - American Eagle - Proof range, a recognised bullion series collected by date, design and condition.
The obverse features Walking Liberty by Adolph A. Weinman, while the reverse carries Heraldic eagle with shield and stars (Type 1 reverse by John Mercanti). This pairing gives the 2008 issue its own place within the wider run and helps distinguish it from neighbouring dates.
Annual bullion issues like this are valued for their precious-metal content as well as their role in complete date runs. Condition, availability and demand for the wider series can all influence collector interest over time.