Whose Face Is On The Hundred Dollar Bill: History, Security Features, And Currency Verification
The face on the United States hundred-dollar bill is Benjamin Franklin, one of the foremost Founding Fathers, scientists, and inventors of the American republic. Understanding the portrait, alongside the bill's intricate microprinting, color-shifting ink, and security threads, is essential for authenticating modern Federal Reserve notes and preventing currency fraud.
Preparation and Currency Verification Checklist
- Brief practical context on foundational setup, required equipment/gear, and scope for inspecting high-denomination fiat currency.
- Bulleted checklist categorizing: Essential gear/tools/materials, mandatory prerequisite knowledge/standards, and estimated budget/duration benchmarks.
- Essential gear, tools, and materials: Ultraviolet (UV) light source (365nm wavelength), 10x jeweler's loupe, and pristine flat-surface lighting.
- Mandatory prerequisite knowledge and standards: Familiarity with Series 2009, 2009A, 2013, and 2017A design architectures, intaglio printing texture recognition, and Federal Reserve banking guidelines.
- Estimated budget and duration benchmarks: Zero cost for manual sensory checks; under 30 seconds per bill execution time using standard inspection methodology.
Step-by-Step Currency Authentication Workflow
Step 1: Visual and Tactile Inspection of the Portrait and Paper Stock
- Examine the physical composition of the substrate, which is a specialized blend of 75 percent cotton and 25 percent linen infused with red and blue security fibers.
- Run your fingertips across the jacket of Benjamin Franklin on the obverse side to detect the raised intaglio printing, which yields a distinct, tactile roughness absent in counterfeit inkjet or laser prints.
- Verify that the portrait of Benjamin Franklin appears sharp, lifelike, and distinct from the background oval, avoiding any blurred lines or flat tonal gradients.
Pro-Tip: Genuine currency paper lacks optical brighteners, meaning it will not glow under a standard ultraviolet blacklight, unlike common commercial printer paper used by counterfeiters.
Step 2: Verification of Advanced Optical Security Features
- Tilt the note to inspect the color-shifting bell in the inkwell located on the lower right of the obverse side, ensuring the copper color shifts cleanly to green.
- Locate the 3D security ribbon woven into the paper (not printed on top), moving the bill back and forth to observe the shifting images of bells and the number 100 transforming into one another.
- Check the watermark by holding the bill up to a light source; a faint image of Benjamin Franklin should appear from the blank space to the right of the portrait.
Warning: Never rely on a single security feature when authenticating currency, as sophisticated counterfeiters routinely replicate individual elements while failing the holistic multi-layer test.
Step 3: Microprinting and Fine-Line Analysis under Magnification
- Deploy a 10x jeweler's loupe to inspect the microprinted text embedded within the golden number 100 on the front, reading "USA 100" repeatedly along the border.
- Examine the security thread running vertically to the left of the portrait, confirming that the microscopic text "USA 100" and alternating flag motifs are clearly legible without pixelation.
- Check the fine-line background printing surrounding Benjamin Franklin and Independence Hall on the reverse, verifying that the geometric patterns remain continuous and unbroken.
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Federal Reserve Note Design and Denomination Specifications
| Series / Design Element | Substrate Composition | Primary Portrait | Key Security Feature | Reverse Side Depiction |
|---|---|---|---|---|
| Series 2009–2017A ($100) | 75% Cotton, 25% Linen | Benjamin Franklin | 3D Security Ribbon & Bell in Inkwell | Independence Hall |
| Series 1990–2003 ($100) | 75% Cotton, 25% Linen | Benjamin Franklin | Microprinting & Plastic Thread | Independence Hall |
| Legacy Series ($100) | 75% Cotton, 25% Linen | Benjamin Franklin | Cotton/Linen Fiber Blend Only | Independence Hall |
Common Currency Verification Failures and Field Fixes
- Root Cause: The tactile roughness of the paper is completely smooth and lacks the distinct ridge of raised intaglio printing.
- Actionable Fix: Immediately reject the note as a suspect counterfeit, as digital offset printers cannot replicate genuine Bureau of Engraving and Printing press pressures.
- Root Cause: The color-shifting bell inside the copper inkwell fails to transition hues when tilted under direct lighting.
- Actionable Fix: Test the note under a 365nm UV light source to check for the glowing pink security thread embedded vertically within the paper matrix.
- Root Cause: The watermark of Benjamin Franklin is visibly printed directly onto the surface rather than embedded inside the paper substrate.
- Actionable Fix: Compare the suspect note side-by-side with a verified, authenticated Federal Reserve note of the same series year under dual-source illumination.
Frequently Asked Questions
Why is Benjamin Franklin on the hundred dollar bill?
Benjamin Franklin is featured on the hundred-dollar bill because he is one of the most influential Founding Fathers of the United States, renowned for his contributions to science, diplomacy, philosophy, and the drafting of the Declaration of Independence. Unlike many other currency portraits who served as U.S. Presidents, Franklin was chosen to honor his monumental legacy as a statesman and polymath.
Are older series hundred dollar bills still legal tender?
Yes, all designs of United States Federal Reserve notes remain legal tender regardless of their printing series year. The U.S. government has never demonetized historical currency, meaning older notes featuring Benjamin Franklin retain their full face value for commerce and banking deposits.
What security feature is most difficult for counterfeiters to replicate?
The 3D security ribbon woven into modern hundred-dollar bills is widely considered the most difficult feature for counterfeiters to replicate. This ribbon contains hundreds of thousands of microscopic lens-like structures that produce optical motion when tilted.
How can I check a hundred dollar bill without specialized equipment?
You can authenticate a hundred-dollar bill without equipment by checking for the raised intaglio texture on Franklin's jacket, holding the note to the light to verify the watermark, and tilting the bill to observe the color-shifting bell in the copper inkwell.
What should I do if I receive a suspected counterfeit hundred dollar bill?
Do not return the suspected counterfeit bill to the passer if you suspect forgery. Instead, note their description, limit handling of the physical currency to preserve fingerprints, and immediately contact local law enforcement or the United States Secret Service field office.
Master the nuances of currency authentication to safeguard your transactions against sophisticated counterfeiting threats.
