There are some possible reasons for this confusion:
* Misremembered or Misheard Information: You may have heard a similar model number or mistaken a different tractor brand.
* Custom Build or Modification: It's possible someone modified a Ford tractor and labeled it "4810," but this would be a highly uncommon scenario.
* Incorrect Information Source: The information you received may have been from an unreliable source.
If you have additional details or context about where you came across this information, it might help clarify the situation.