1896 "Broken Eagle" mechanical "dollar"

Mechanical brass "broken eagle dollar" promoting William McKinley for president and Garret Hobart for vice president and disparaging William Jennings Bryan and Arthur Sewall. Slide the loop to 12:00 and it reads I'M ALL RIGHT / SOUND MONEY MEANS A DOLLAR WORTH 100 CENTS McKINLEY, HOBART AND PROSPERITY. Shift the loop 1/4 turn to the right and it reads WHERE AM I AT? / FREE SILVER MEANS A DOLLAR WORTH 50 CENTS BRYAN, SEWALL AND ADVERSITY. 1 1/2" diameter, in excellent condition.