macchinari classici caterpillar
https://classicdozers.wordpress.com/caterpillar-1925-1949/
https://classicdozers.wordpress.com/dozer-gallery/
https://classicdozers.wordpress.com/dozer-gallery/caterpillar-1950-1970/
d8, cat 955, cat d6. cat 950, cat 941, 966 c