How Technical Due Diligence Skills (Like Detecting Counterfeit Coins) Can Command $500/hr Consulting Rates
October 13, 2025How I Authored ‘Counterfeit Coin Detection: The 2001-P Sacagawea Case Study’ for O’Reilly Media
October 13, 2025From Coin Collector to Course Creator: My Unexpected Journey
I never imagined my weekend hobby would pay the mortgage. But last year, my online course about detecting fake coins generated over $50k. Let me show you how I transformed my numismatic passion – especially my expertise with the tricky 2001-P Sacagawea Dollar – into a profitable digital product.
Finding Your Expertise Sweet Spot
Listen to Community Pain Points
When I spotted that fake Sacagawea Dollar in 2019 (greenish tint, wrong 6.9g weight), collector forums exploded with “How do I check mine?” questions. That’s when I realized: even experienced hobbyists needed authentication training. My course “Modern Coin Forensics” was born from these common struggles:
- Weight variations (real coins = 8.1g)
- Diameter differences (must be 26.5mm)
- Surface texture tells
- Edge inconsistencies
Tools That Built Trust
My students love the custom verification spreadsheet I include. Here’s a peek at the code I wish I’d had years ago:
/* My Simple Coin Checker */
function authenticateCoin(weight, diameter) {
const validWeight = (weight >= 8.0 && weight <= 8.2);
const validDiameter = (diameter >= 26.4 && diameter <= 26.6);
return validWeight && validDiameter;
}
This simple script has helped students avoid $3,200 in fake purchases last month alone!
Creating Content That Converts
Structure That Sticks
After testing with beta students, I settled on this 12-module framework:
- Counterfeiting Today: What's Changed
- Must-Have Tools Under $100
- My 4-Step Verification Method
- Sacagawea Case Study Breakdown
Why Eyes Beat Text
I recreated forum comparison shots as interactive quizzes. The result?
"Students who used visual tools spotted fakes 78% faster" - Our Course Analytics
Those forum photos literally became my course's backbone!
Where to Host Your Course
Profitability Face-Off
| Platform | Fees | Access | Brand Control |
|---|---|---|---|
| Teachable | 5% + $39/mo | Lifetime | Your Rules |
| Udemy | 50% Cut | Limited | Minimal |
I chose Teachable - that 50% Udemy fee would've cost me $25k last year!
Marketing That Actually Works
Start Where Your Students Live
My three-step launch blueprint:
- Forum "Guess the Fake" contests
- YouTube shorts showing authentication tricks
- Collaborations with coin Facebook groups
From Curiosity to Customer
My simple funnel converts 23% of visitors:
- Free: "5 Dead Giveaways of Fake Coins" checklist
- $7: Weekend Verification Workshop
- $297: Full Certification Program
Beyond the Course: Income Streams That Stack
Build Your Revenue Ecosystem
My core course now represents only 60% of income thanks to:
- Membership: $49/mo Expert Verification Community
- Database: $97/year Updated Counterfeit Reports
- Tool Partnerships: Earnings from recommended gear
Your Turn: Package What You Know
That suspicious Sacagawea Dollar changed everything for me. If you're sitting on specialized knowledge - whether it's vintage watches, rare plants, or coding - here's your roadmap:
- Spot genuine struggles in your niche
- Create focused, actionable training
- Pick platforms that protect your profits
- Meet students where they already gather
Three years ago, I was just another collector with a magnifying glass. Today, I'm helping thousands avoid costly mistakes while earning life-changing income. What expertise will you package first?
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