- From the Fred Weinberg Collection -
This is a portion of a raw copper ingot which is approximately 5 1/2 inches by 5 1/2 inches, a half inch thick and weighs 4 3/4 lbs. This ingot would have been melted, refined and eventually rolled into copper planchet strips. Blank cent planchets used by the United States Mint would eventually have been punched out of these strips. Fred Weinberg has had this copper ingot in his personal collection for over 25 years. He purchased it at the same time that he bought a group of copper and clad punched strips. It is the only copper ingot that he has ever seen prior to being refined and rolled into planchet strips. Today’s copper strips consist of a different composition of copper and zinc. Prior to 1982, the copper strips used in the production of cent blanks were 95% copper, 5% tin and zinc. This copper ingot may be the only one available and is being offered for the first time in 25 years!