 In 1905, the two locked for one season, but not in the way used today.It wasn't until 1909 that the team changed to the familiar interlocking NY that would be the team logo long after the team became known as the Yankees, and would continue to be the cap insignia until today.The interlocking NY was originally designed by Tiffany & Co. and struck on a medal of honor presented in 1877 to John McDowell, a New York City police officer shot in the line of duty.