Does the mint still make patters? Are there any modern patterns around?

How about state quarter patterns in copper or aluminum? When they switched from the Eisenhower Dollar to the SBA Dollar, were there trials done first? Does anyone have any modern patterns to show?
Dan
Dan
0
Comments
The new Dollar coin that would become the SBA that is.
Frank
09/07/2006
uspatterns.com
Doggedly collecting coins of the Central American Republic.
Visit the Society of US Pattern Collectors at USPatterns.com.
nonsense dies still exist. There are numerous "patterns" struck
by private companies for consideration as a replacement for silver
back in 1965. These were made by INCO, Olin Brass, and even
the Franklin Mint. The Martha Washington dies have been used
for dozens of different test pieces, though most may not exist.