Clue: 1909 centennial debut that originally featured the ends of 17-, 23-, 39-, 51-Across and the initials in the circled squares (explained in Notepad)
We have 1 possible answer for the clue 1909 centennial debut that originally featured the ends of 17-, 23-, 39-, 51-Across and the initials in the circled squares (explained in Notepad) which appears 1 time in our database.