Christina Egan, 23, recently received a strange letter in the mail that included her driver’s license and a handwritten thank-you note. The ID was one she had lost over a year ago when it fell out of her pocket at a bar in New York City. Little did she know when she dropped the card, an underage woman hit the jackpot.

According to the note, the woman who found the ID wasn’t yet 21, but looked enough like Egan that she used the card to buy booze for a full year before mailing the card back. Iconic.  

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Image via Facebook/Christina Egan

“Found this on the floor of a bar about a year ago. Hope you don’t mind I used it for awhile,” reads the note. “But—now I’m 21 so you can have it back! Thanks!”

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Image via Facebook/Christina Egan

In an interview with Buzzfeed, Egan, a recent graduate of Columbia University, says she didn’t think much of it when she first lost the ID. It was one of three she’s lost over the past year. “I usually just go out with my ID, debit card, and lip gloss in my jacket pocket,” she said. “No purse, no wallet. Bad habit.”

She was surprised to receive the letter, which had no return address but was stamped in Albany, New York. She thinks the note was “hilarious” and “so sweet,” and that she guesses it belonged to a college student. Though she had already replaced the card, she plans to keep the old version as backup.  

“I’m sure that ID saw some good times…if only it could speak,” she told told PIX 11. “I hope this mystery girl enjoyed her time as Christina. I only wish she would have sent the $10 it took to replace.”