Here is a table of the serial number ranges for the Sears Tutor portable typewriter. These numbers were provided by Jay Respler of Advanced Business Machines. The Tutor was introduced in 1966, and discontinued in 1969. It was available in a choice of medium blue or "Hot Coral" during 1966, and blue for the other years.
Year
|
Lowest
|
Highest
|
1966
|
21000
|
47915
|
1967
|
39000
|
71945
|
1968
|
77000
|
96431
|