🔍 Strike Parameters & Date Attributions
PCGS FS & NGC 6FS Standards🔬 Microscopic Monticello Portico Reticle
Steps & Henning Forensics📋 Strike Forensic Analysis & Valuation
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Architectural Strike Dynamics: Monticello Steps & The Full Steps (FS) Standard
The Jefferson Nickel, introduced in October 1938 following a public competition won by sculptor Felix Schlag, features the third President on the obverse and his Neoclassical Virginia plantation home, Monticello, on the reverse.
1. The Metallurgical Challenge of Cupronickel
Striking a five-cent coin in 75% copper and 25% nickel is among the most demanding tasks in coinage production. Cupronickel has a flow stress of 360 MPa—substantially higher than 90% silver (280 MPa) or pure gold. When the dies closed under 65 to 80 tons of toggle force, the metal resisted flow into high-relief details.
Directly opposing the central portico steps on the reverse was Thomas Jefferson's high-relief cheek and bust. Because metal naturally flows toward the path of least resistance, it filled Jefferson's cheek first, starving the opposite die face and leaving the delicate staircase horizontal grooves completely flat.
| Strike Tier | Architectural Criteria | Grading Service Designation | Rarity & Market Impact |
|---|---|---|---|
| 6 Full Steps (6FS) | All six horizontal lines completely distinct from left pillar to right pillar | NGC 6FS (The Ultimate Perfection Standard) | Extreme mega-rarities commanding thousands of dollars on late-date coins |
| 5 Full Steps (5FS) | At least five horizontal lines unbroken and clearly separated across the staircase | PCGS FS / NGC 5FS (Universal Certified Standard) | Commands massive 50x to 500x multipliers over ordinary strikes |
| Non-FS (Typical Strike) | Steps bridged in center or bottom steps merged into ground plane | Standard Numerical MS (e.g., MS65) | Common pocket change or modest collector premium ($0.50 to $15) |
\(\text{Value}_{\text{FS}} = \text{Value}_{\text{Non-FS}} \cdot M_{\text{Strike Scarcity}}\)
Representative Strike Scarcity Multipliers at MS65 Grade:
• 1938-D: \$25 Non-FS → \$65 5FS (2.6x Multiplier - Crisp Early Dies)
• 1953-S: \$18 Non-FS → \$150 5FS → \$3,500 6FS (194x Multiplier!)
• 1960-D: \$2 Non-FS → \$1,500 5FS → \$14,000 6FS (7,000x Multiplier! - The Holy Grail Modern Nickel)
2. The Francis LeRoy Henning Counterfeit Mystery (1954)
In 1954, a talented machinist named Francis LeRoy Henning set up an illicit minting operation in Erial, New Jersey. Henning engraved steel dies and struck an estimated 500,000 counterfeit nickels.
- The Fatal 1944 Blunder: Henning produced counterfeit coins with six known dates: 1939, 1944, 1946, 1947, 1953, and one unidentified date. For his 1944 dies, Henning used an ordinary pre-war reverse hub lacking a mintmark. In reality, genuine 1942–1945 wartime silver nickels had huge mintmarks ('P', 'D', or 'S') stamped directly above the dome of Monticello! Tellers quickly spotted the 1944 nickels with no mintmark.
- The Forensic "R" Notch Hallmark: On the reverse of all genuine Henning nickels, the diagonal leg of the letter 'R' in the motto "E PLURIBUS UNUM" exhibits a small, distinct notch or hole in its left loop. Furthermore, Henning nickels weigh approximately 5.4 grams (due to an 80% copper, 19% nickel, 1% iron alloy) versus the official 5.00g standard.
Real-World Collector Case Studies
Case 1: The $\$14,000$ Bank Roll 1960-D Nickel
An Ohio collector opening original 1960-D bank-wrapped rolls noticed a pristine, blazing gem nickel with exceptional central definition. Examining the Monticello staircase under a 30x binocular microscope, all six steps were razor-sharp from the left foundation pillar to the right corner, completely free of the characteristic central mush. Submitted to NGC, it received the legendary grade MS65 6FS, realizing \$14,100 at auction.
Case 2: Identifying a Henning 1944 in Pocket Change
A coin roll hunter in southern New Jersey sorted through a box of nickels and pulled an old-looking 1944 nickel. Turning it over, the space above Monticello's dome was completely blank. Checking the scale: 5.38 grams. Under a 10x loupe, the "R" in PLURIBUS showed the unmistakable Henning notch. Despite being an illegal counterfeit when made, Henning nickels are now celebrated historical collectibles; this piece sold on eBay for \$185.
Case 3: The Heartbreak of the Center Bridge on a 1953-S
A collector purchased a brilliant uncirculated 1953-S Jefferson nickel for \$40, hoping for a 5FS designation (worth \$150 to \$350). The first four steps were sharp; however, under 20x magnification, the fifth step had a tiny, 0.2mm bridge of merged metal in the exact center beneath the third column. PCGS refused the FS designation, grading it MS65, keeping its value at \$18.
Diagnostic Pitfalls & Disqualification Red Flags
- Planchet Lamination vs. Step Cuts: Cupronickel blanks frequently suffer from internal metal impurities leading to surface laminations (peeling flakes). If a lamination flake crosses the staircase, it breaks step continuity and disqualifies the coin from FS.
- Tooling / Chiseled Fake Steps: Counterfeiters sometimes use micro-engravers to cut lines into flat steps. Genuine struck steps have rounded, frosty metal flow along the groove; cut steps have sharp, shiny, jagged burrs and lack original mint luster.
- Confusion Over 5FS vs 6FS: PCGS awards only the "FS" designation, which requires 5 full steps. NGC awards both "5FS" and "6FS". Ensure you understand which standard is being traded when pricing coins.
Frequently Asked Questions (FAQ)
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