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Tractor
Tractor plates were first issued in 1914, and used an E prefix, standing for Engine until 1927, from 1928 to 1933 a TE prefix, meaning Traction Engine, was used. Then the prefix was removed and the word TRACTOR was used as the legend until the discontinuation of tractor plates after 1983. Both the 1971 and 1977 bases used the prefix TR. In 1984 tractor plates were replaced by two different types. If the tractor was used for industrial purposes, it received a Special Mobile Equipment (SME) plate. If the tractor was used for agriculture, the vehicle was issued an Implement of Husbandry (IMP) plate. There has been a proliferation of SME plates and profound scarcity of IMP plates. As of the end of 2011 there were 24,367 SME plates in use and 216 IMP plates.
1965 - 1984
1965 - 1970
| Notes | Number Plate | Personalized Plate | Sample Plate |
|
Observed serial range: 100-000 - 139-631 All plates measure 6" x 12" Manufactured in Pennsylvania prisons Issued in singles Colors: dark blue on gold |
 From Tim Gierschick  From Tim Gierschick |
Not offered on this format | Not offered on this format |
1971 - 1976
| Notes | Number Plate | Personalized Plate | Sample Plate |
|
Observed serial range: TR-10000 - TR-50998 All plates measure 6" x 12" Manufactured in Pennsylvania prisons Issued in singles Colors: gold on dark blue |
 From Tim Gierschick  From John McDevitt |
Not offered on this format |  From John McDevitt |
1977 - 1984 (final year)
| Notes | Number Plate | Personalized Plate | Sample Plate |
|
Observed serial range: TR-10000 - TR-39456 All plates measure 6" x 12" Manufactured in Pennsylvania prisons Issued in singles Colors: dark blue on gold |
 From Tim Gierschick  From John McDevitt |
Not offered on this format | Not offered on this format |