I believe yours is a DeLaval New World Standard Series Number 14 floor model cream separator. It was rated at 550 pounds of milk per hour. This would have been enough capacity to separate the milk from up to 25 cows in an hour's time. DeLaval was the most popular of the centrifugal cream separators. The company originated in Sweden in 1883 and started in the US in 1885. Gustaf DeLaval is credited with inventing the first continuously operating cream separator for which he received a U. S. patent on October 4, 1881. The advantage of Gustaf DeLaval's invention was that the milk did not have to be separated in batches but rather the milk could be continuously separated without stopping. By 1909 there were one million DeLaval cream separators in use, by 1922 there were 2.5 million and the number had jumped to four million by 1928.
Look for the manufacture date stamped on the base of the disc holder and in the frame of the separator.
DeLaval would have been considered the "Cadillac" of cream separators. They were the first and most common but also the most expensive.