STOCKHOLM - A Swedish postcard bearing a lottery number arrived 50 years after being sent to a retirement home on the Baltic island of Gotland. The card to a former employee at the Avallegarden retirement home in Klintehamn was mailed by a friend in Finspang, some 90 miles away on the Swedish mainland. Sent in October 1955, it arrived last month. "Now and again a letter that has gone astray like this surfaces somewhere ... but it is very unusual," Swedish Post Office spokesman Markus Trautmann said Monday. The postcard included the number of a lottery ticket that the two women bought together, local paper newspaper Gotlands Allehanda reported. It was not known if they won. Reuters