What year is a John Deere 2020 with serial number 046748T?

The JOHN DEERe 2020 with the serial number 046748T was manufactured in 1970. The "T" at the end of the serial number indicates that it is a model produced in the Waterloo, Iowa factory. John Deere 2020 tractors were produced from 1964 to 1972, with this specific serial number helping to pinpoint its year of production.