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Uni Face Coins Error Price Guide

Uniface strike coins

A uni face coins results when two planchets are stacked one atop the other at the time of striking. This produces two coins: one with only an obverse image, and a second with only the reverse image. The planchets may be centered over the die producing one complete image on each coin or off-centered producing partial images on each side. In the accompanying image of the blank reverse, the shadow or outline of Lincoln’s profile from the observe side of the coin is visible.

Uni Face Coins Price Guide

Additional Information:

Uni face coins occur when there have been two blank planchets in the press at the same time. The other blank will obstruct the die on either the obverse or reverse side, which will prevent it from having that design on the coin. There are many different variations involving uniface errors. In addition to having a 100% blank obverse or reverse, a coin can be struck off-center, with a blank planchet in the collar which will obstruct one side of the off-center. There are also mated pairs which have a combination of multiple errors which can include a side which is uniface. Finally, there are uniface strikes due to a die cap which adhered to the die, forming itself in the shape of a die and striking blank planchets.

Additional Price Guide Entries:

Multi Struck Coins

Uni Face Coins



Partial Collar Coins

Wrong Planchet / Off Metal Errors

Off Center Coins

Mated Coins

Martha Washington Test Pieces


U.S. Gold Errors

Fold Overs

Double Denominational Coins

Die Caps

Adjustment Strikes




Bonded Coins

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