As you know, Platinum Eagle bullion coins were first minted in 1997. Four sizes were struck: 1/10 oz. Face Value $10.00 US 1/4 oz. Face Value $25.00 US 1/2 oz. Face Value $50.00 US 1 oz. Face Value $100.00 US Uncirculated were struck for bullion purchasers. Proofs were struck for collectors. I have a question for you. If you are offered a proof Platinum Eagle coin that has been removed from a Proof Set or mint issued container, how can you know if the coin is trully a proof? The easiest way to know is to look at the motto "E PLURIBUS UNUM." An uncirculated (non proof) coin displays the motto in raised lettering while the proof coin bears the motto in incuse lettering. The following photos are courtesy of coinpage.com: 1998 American Platinum Eagle Uncirculated $50 1/2 Ounce: http://www.coinpage.com/coin-image-6160.html 1998 American Platinum Eagle Proof $50 1/2 Ounce: http://www.coinpage.com/coin-image-6704.html Another quick, easy way ro ascertain the difference is to check the reverse of the coin. The Proof was struck by the mint at Westpoint and bears a "W" mint mark. 1998 Platinum Eagle Uncirculated $50 1/2 Ounce (no "W"): http://www.coinpage.com/coin-image-6161.html 1998 Platinum Eagle Proof $50 1/2 Ounce ("W") Wasn't that easy? Clinker
