Missing Edge Lettering – Some 2007 Washington $1 Coins were released without the standard edge inscriptions, making them a famous error coin.
Proof-Only Presidential Dollars – Certain Presidential dollars, like the 2016 Ronald Reagan coin, were only issued in proof sets due to declining demand.
Low-Mintage Issues – Coins honoring presidents like Millard Fillmore and Franklin Pierce had very low mintages, making them harder to find in circulation.
Reverse Design Errors – On rare occasions, Presidential coins were struck with design mismatches or rotated reverses, making them valuable errors.
Special Release Packaging – Some coins were sold only in special sets, such as the Presidential Dollar Coin & First Spouse Medal Sets.
Prototype Test Strikes – A few test coins never intended for public release have surfaced, sparking mystery and legal battles over ownership.
Gold and Platinum Patterns – Experimental presidential coin designs in gold and platinum were created but never released to the public.