If you had a copy of my Gas Pump Identification book you would be able to determine that the Bennett Model 766 were made between 1948 and 1059. If you will supply me with the complete information that is on the ID tag, I might be able to tell you the month it was born., If you like to look at some good pictures of the 766 Model Bennett pumps, go to this page of my website and just click on Bennett:
http://petrolianacollectibles.com/gas%20pump%20literature.htmWelcome to the hobby, I have the largest website devoted to this hobby. it has over 12,000 images to help you finds things.