One might have thought that it had been handled by the USPS, having taken that long..
But no, it was a true message in a bottle, tossed into the sea in 1913. Held and returned by King Neptune.
Found by a fisherman, and returned to the descendant of the author of the postcard.
(which shows a great deal of integrity on the part of the fisherman, Konrad Fischer)
I wonder what paths the bottle took in that 101 years? Where did it go?