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Welcome to the Lincoln Cent Forum Glossary.
Use the alphabetical links above to navigate to the desired term.

This glossary of terms was written and compiled by Will Brooks with the help of our forum members. A huge thanks to everyone who contributed knowledge, ideas, words, and photos to make this growing educational resource possible. Special thanks to Richard Cooper, aka “Coop” who donated many of the photos.

Janvier Reduction Lathe: A machine that was used to reduce the size of, and transfer the original design of a coin from the galvano to the master hub. Nowadays, designs are created and transferred by computers.

JFM: Initials for Joseph F. Menna seen on the reverse of Shield cents. Menna sculpted this design created by Lyndall Bass. Menna’s initials also appear on the reverse of the 2009 Presidency in Washington D.C. Cent, which he also sculpted.

Joseph F. Menna: A renowned sculptor in both traditional and digital media, Menna was the first full-time digital artist employed by the U.S. Mint. Among many other designs, Menna was the sculptor for Susan Gamble’s 2009 Presidency in Washington D.C. reverse design for the Lincoln cent, as well as the sculptor for Lyndall Bass’ Shield reverse design used on Lincoln cents from 2010 to the present.

JI: See Initials.