The book says its a 6Trax Loader first built in 1953
M K, I have it down as a No 6 Shovel of 1953. D318 engine -80 FHP
2 cu yd bucket weight 29,165 lbs and based on the D6. Worked on a few and found them to be excellent machines in their day. Not too easy to do major repairs on. Good luck. Al