The Saint-Gaudens inspired effort of Charles Barber to reduce the Extremely High Relief down. After 11,250 coins, this effort was stopped.

A coin with deep concave fields, due to its design. High relief coins required extra pressure to be fully struck, and were difficult to stack. Therefore, the few coins struck in high relief by the U.S. mint (such as the 1921 Peace dollar, and the 1907 Roman Numerals double eagle) were each made for only one year.

A coin struck repeatedly from dies which are specially made to allow for extreme depth and relief of the devices relative to the fields.

The designing of a die so as to create a deep, concave field upon the surface of a coin for maximum contrast with the devices. It requires the use of increased pressure in striking or sometime multiple strikes to attain the desired effect. Most notable coins struck in high relief are the 1907 Saint-Gaudens double eagle and 1921 Peace dollar.

Sculptured relief in which areas strongly project from the background, almost becoming a sculpture in the round.

a technique of sculpture in which the sculpted figures project significantly from the background surface (ATA fig.5-90) [image

See Haut Relief.