A mysterious note was discovered in the secret pocket of a dress from the 1880s. A decade later, someone finally cracked the code.

• An archeologist found a silk dress from the 1800s with a hidden pocket concealing a secret code.
• A code breaker recently figured out the code was for telegraphed weather reports.
• Who owned the dress and why the code was hidden are still unknown.

In late 2013, archeologist Sara Rivers Cofield was at an antique mall in Maine when she bought a two-piece bustle dress that dated to the mid-1880s.

"It was a beautiful sort of rust, metallic, bronze silk dress," she told Business Insider, one she'd seen at the shop for years. It wasn't until she brought it home that she discovered its secret — a hidden pocket carrying a coded note.

The hidden note included lines of text that appeared to be gibberish, such as: