On a nature hike along Germany's Baltic Coast in 1913, 20-year-old Richard Platz scrawled a note on a postcard, shoved it into a brown beer bottle, corked it and tossed it into the sea.
Where it traveled, no one knows for sure, but it was pulled out of the Baltic Sea by a fisherman last month not far from where Platz first pitched it.
Much of the ink on the postcard had been rendered illegible but the discovery will be on display until May 1. Experts will then try to decipher the message.