Glossary

Categories

Brockages
space
Counterbrockages
space
Die Adjustment Strikes
space
Die Caps
space
Die Trials
space
Double Denomination
space
Double/Multiple Strikes
space
Dual Countries
space
Experimental Blanks
space
Experimental Strikes
space
Experimental Surface
space
Feeder Finger Strikes
space
Gold Die Trials
space
Gold Errors
space
Gold Off-Metals
space
Martha Washington
Test Pieces

space
Mated Pairs
space
Mules
space
Multiple Errors
space
Off-Centers
space
Off-Metals
space
Overstrikes
space
Pattern Die Trials
space
Pattern Errors
space
Pattern Mules
space
Platinum Errors
space
Proof Errors
space
Spectacular Errors
space
Transitional Errors
space
Two-Headed Coins
space
Two-Tailed Coins
space
Uniface Die Trials


slabblankslab

Experimental Blanks

Recently PCGS and NGC have authenticated and certified experimental blanks and planchets struck at the U.S. Mint. These include Clad Ike dollar planchets with an experimental upset rim, a group of 1943 Lincoln cents including experimental blanks and planchets, unique experimental Ike dollar planchets with notations by the Mint on the planchets, a few Jefferson nickel planchets with an experimental finish and a unique Jefferson nickel planchet with an experimental rinse and a notation by the Mint on the planchet.

This is part of the U.S. Mint’s history and production of experimental coinage. These experimental blanks and planchets were previously unknown to the numismatic community.