Data from the U.S. Treasury shows that it costs nearly 4 cents to produce a single penny and nearly 14 cents to produce a nickel.
The inscription was expanded to gold and silver coins with the passage of the 1865 Act. All coins were approved with "In God We Trust" without further congressional approval in 1873. The 1965 ...
a 3-cent coin discontinued in 1873, and the gold dollar coin, which was discontinued in 1889; that differed from the dollar coin currently in circulation.