The Pony Express Diamond Jubilee so-called half dollar is a privately issued commemorative token that was created to commemorate the 75th anniversary, or diamond jubilee, of the Pony Express. The fields are described as DEEP PROOF LIKE SURFACES.  

THE FULL-SIZED NGC ENCAPSULATION SHOWS THE DARKNESS AND BRILLIANCE OF THE FIELDS AND MODERATE FROSTING OF THE DEVICES.  THE COIN-ONLY PHOTOS GIVE A FEEL FOR THE DEVICE DETAILS AND  STRENGTH OF STRIKE .  IT HAS BEEN GIVEN AN NGC MS-64DPL GRADE.    

"So-called half dollars" typically refer to privately issued tokens or medals that are not official United States currency.  The C. Smith series has been coined to commemorate historical events. They are not legal tender.  The term "so-called" is used to distinguish these "coins" from official U.S. half dollars.  It has been authenticated and graded by the Numismatic Guarantee Corporation.  Today, Smith's so-called half dollars are considered a collectible numismatic item and can have value to coin collectors and history enthusiasts.

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