Michigan CAT - The Caterpillar Diesel Sixty Tractor was the first diesel tractor model produced by Caterpillar. Any guesses on what year it was introduced? | Facebook
![Caterpillar SIXTY - 'Cat POWER' - "60 Horses & She's Yours Mister" - Logging & Mining - Model Railroad Forums - Freerails Caterpillar SIXTY - 'Cat POWER' - "60 Horses & She's Yours Mister" - Logging & Mining - Model Railroad Forums - Freerails](http://www.freerails.com/gallery/4568/4568_270054_360000000.jpg)
Caterpillar SIXTY - 'Cat POWER' - "60 Horses & She's Yours Mister" - Logging & Mining - Model Railroad Forums - Freerails
![Buffalo Road Imports. Caterpillar Sixty dozer CONSTRUCTION BULLDOZERS Diecast model Customized Diecast scale models Buffalo Road Imports. Caterpillar Sixty dozer CONSTRUCTION BULLDOZERS Diecast model Customized Diecast scale models](https://www.constructionscalemodels.com/images/thumbs/0036479_caterpillar-sixty-dozer.jpeg)
Buffalo Road Imports. Caterpillar Sixty dozer CONSTRUCTION BULLDOZERS Diecast model Customized Diecast scale models
![Just A Car Guy: Caterpillar Sixty silver and gold models were made for the 60th anniversary of the 1931 tractor Just A Car Guy: Caterpillar Sixty silver and gold models were made for the 60th anniversary of the 1931 tractor](http://3.bp.blogspot.com/-O63-e4Qas_Q/VnjmawYYP6I/AAAAAAAEC1c/HzD2MtUA41g/s1600/s-l1600.jpg)
Just A Car Guy: Caterpillar Sixty silver and gold models were made for the 60th anniversary of the 1931 tractor
![Caterpillar Model 60 vintage crawler tractor on display at Manitowoc, Wisconsin Highway Department Stock Photo - Alamy Caterpillar Model 60 vintage crawler tractor on display at Manitowoc, Wisconsin Highway Department Stock Photo - Alamy](https://c8.alamy.com/comp/JNM6K4/caterpillar-model-60-vintage-crawler-tractor-on-display-at-manitowoc-JNM6K4.jpg)