Hi John, the tractor is serial number 110 412 886, which makes it a late 1960 model. I actually don't think that it has the lube pump. Looks pretty bare, no filter, no other mods, all original. Could not having the lube pump cause me headaches in the feature? It will not do hard pulling, just haybine, corn planter, etc. Runs well, but does not start well. , uses no oil, but w/ only 3400 hrs, should be just getting broke in. Any other comments about these tractors? Thanks, Wide Open.