2004-S Proof

The 2004-S clad proof closed the mid-plateau years of the early-2000s standard Proof Set run, with San Francisco delivering 2,965,422 pieces in routine cupronickel-clad finish. The figure sits just below the three-million baseline that held from 2001 through 2003, signaling the start of a downward trend that continues into the 2005-S issue and beyond. Composition follows the post-1971 recipe of 75% copper, 25% nickel outer layers bonded to a pure copper core at 11.34 g and 30.6 mm with a reeded edge. The S mintmark sits above the date on the obverse, with Gilroy Roberts's GR initials at the truncation of Kennedy's neck and Frank Gasparro's FG to the right of the eagle's tail feathers. The companion 2004-S Silver Proof in 90% silver is catalogued separately under the Silver Proof Set program, which continued to draw the most dedicated Kennedy proof buyers off the standard set.

Cameo and Deep Cameo contrast drives the grading market on this issue. Cameo refers to the visual effect when mirrored proof fields stay glassy and devices hold a frosted matte appearance, produced by freshly prepared sandblasted dies in their early working life. PCGS, the Professional Coin Grading Service, designates these as CAM, with the strongest contrast graded DCAM (Deep Cameo). NGC, Numismatic Guaranty Company, uses Cameo and Ultra Cameo for equivalent finish categories. By 2004 the Mint's proof process produced full DCAM contrast on essentially every San Francisco strike, so PR69 DCAM is the routine baseline grade rather than a condition rarity. Diagnostics under angled light include frost coverage on Kennedy's hair, sharpness of the eagle's chest feathers and shield, and depth of mirror around the date. Authentication is not a serious concern at this composition because modern cupronickel proofs are not commercial counterfeit targets.

The 2004-S clad proof is a routine PR69 DCAM acquisition with original 2004 Proof Set packaging widely available in the secondary market. The premium sits at PR70 DCAM, where small surface differences separate visually identical coins under loupe inspection, and absolute pricing remains modest given the large certified populations. Year-set collectors working to budget typically choose this clad piece over the silver companion. No key-date status, no recognized variety; the issue reads as the last of the three-million-or-near-three-million standard-set Kennedy proofs before the 2005 step down and the parallel arrival of the Satin Finish business-strike halves that introduce a new finish-disambiguation concern on the circulation side. For the broader story of the modern proof program and the series' production arc, see the Kennedy Half Dollar series history.