[3] On May 19, 2006, he was appointed Chief Engraver of the U.S. Mint (also known as Supervisor of Design and Master Tooling Development Specialist).

[4] The position had been officially vacant for 15 years following the retirement of Elizabeth Jones, the Mint's eleventh Chief Engraver, in 1991.

In June 2011, Mercanti became a paid spokesperson for Goldline International and appeared in a television commercial for the company.

[6] Mercanti has produced more coin and medal designs than any employee in United States Mint history (more than 100 as of 2006).

[2] In addition to designing and sculpting a number of Congressional Gold Medals, Mercanti worked on quarters for the states of Arkansas, Iowa, North Carolina, Pennsylvania, and West Virginia for the 50 State Quarters Program.