Make Photo pool Flickr member Mariusm posted…”I followed Geoff Johnson’s instructions and discovered that the back of $5 and $20 bills (but not $1) has an interesting security feature…” Check out the weird photo!
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IR Web cam in action!
Make Photo pool Flickr member Mariusm posted…”I followed Geoff Johnson’s instructions and discovered that the back of $5 and $20 bills (but not $1) has an interesting security feature…” Check out the weird photo!
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