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!
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!
