Today's #ThrowbackThursday was sent to us by Vincent Martin. This photo was taken back in 1968. A Cat® 631 being pushed by a Cat D9! Share your throwback Cat machine photos with us! #TogetherForGenerations #Caterpillar #CatMachine #CaterpillarEquipment #Scraper #Dozer #Finning #FinningUKIreland