Proof Platinum Eagle Coins
In 1997, the United States Mint added to their line of precious metals bullion and investor coins with the American Platinum Eagle. The coins are struck in .9995 platinum and at the outset of the series were offered in a range of different weights. Although the series has been scaled back, collectors can still look forward to the annual release of a proof version of the coin featuring a newly created reverse design.
Proof Platinum Eagles have been offered for each year of the series from 1997 to present. For the initial year of release, the proof coins carried the same reverse design as the bullion version. Starting in 1998, the US Mint has created a new reverse design for each year of issue, generally following a multi-year theme.
Throughout the series, the reverse design themes have included "Vistas of Liberty", which situated the bald eagle in different landscapes across America, "Foundations of American Democracy" which depicted the three branches of government, and most recently a series highlighting the core concepts of democracy as found in the Preamble to the Constitution. These rotating designs provide a unique appeal for collectors of the series.
From 1997 to 2008, the Platinum Eagle was available in four different sizes: one ounce, one-half ounce, one-quarter ounce, and one-tenth ounce. For this date range, coins were offered in both bullion and proof format. Starting in 2009, only one ounce coins have been offered in proof format.
An appealing feature of this series is the limited mintage for numerous issues. After initial demand subsided, sales and corresponding mintages for the annual releases fell, reaching unprecedented lows in 2008. Many collectors believe that the extremely low mintage levels and the unique nature of the coins may set the stage for future appreciation.