Katie's coin journey began at just nine years old. 

She received a penny as change at a gas station. 

Something about the penny felt different to her. 

It was a rare 1955 doubled-die penny. 

This coin variety is highly sought after by collectors. 

Katie’s penny could be worth $18,000 today. 

Her discovery sparked a lifelong passion for coins. 

That simple find turned into a rewarding hobby.