This old 1929 Caterpillar Sixty started a lot easier than I thought it would. I guess not all old machines are cranky. The other crawler seen is a 1952 CAT D4. I didn't get there early enough to catch that one being started. These were seen at the Arizona Early Day Gas Engine & Tractor Assc. Show in Apache Junction, AZ on 3-10-12. I also shot video of both of these tractors hooked to the sled in the sled pulling competition, so check them out too.