【】Credit: christina egan//facebook

It's pretty rare for a lost driver license to turn up a year after it goes missing.。

However, Christina Egan experienced such fortune thanks to a mysterious and hilarious 21-year-old.。

Egan, a recent graduate of Columbia University, shared a photo on Facebook yesterday of a cheeky thank you note and her old ID that she received in the mail.。

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"Found this on the floor of a bar about a year ago, hope you don’t mind I used it for awhile. But – now I’m 21 so you can have it back! Thanks 😊 ❤️," the note read.。 Thanks 😊 ❤️," the note read. 。

Credit: christina egan//facebook 。

Egan lost the ID last year at a bar on the Lower East Side of Manhattan, where she was living at the time.。

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Thanks for signing up! 。 "I don't know how it got all the way upstate! I thought it was absolutely hilarious," Egan wrote to。Mashable。

. "No hard feelings to the anonymous girl. It's nice to know that she had a nice time in my honor. It was also sweet of the girl to send such nice stationary. "
。

The note was smartly sent with no return address, so Egan doesn't know who wrote it. 。

And that's probably for the best, considering the Police Academy paperwork in the background of Egan's photo.。

Egan explained that the paper is actually a test for Police Academy students, where her father works.
。

"My father is one of the creators of The Police Academy at Bellevue Hospital in Manhattan," she explained. "I recently graduated with my Masters in Social Work and he appreciates when I give him feedback on his programming through that lens.。 UPDATE: Dec. 2, 2016, 5 p.m. EST。

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UPDATE: Dec. 2, 2016, 5 p.m. EST。

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This article was updated to include comments from Christina Egan.
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