I think the coin may be a genuine 1942/1 dime. But I suspect that it was heavily corroded and then tooled, scraped, and buffed to remove that corrosion.
woodworking, framing pictures, sculpting, RC toys, gardening... the list goes on... and many of these options can yield far better monetary results for a skilled craftsman than modifying coins in an attempt to get one over on another person. It just seems to me, once you have invested the money into tools and the effort into learning how to do something like this, there are far more productive uses for one's time. Personally, I don't think it's about money for the people who do this type of crap. I think it's more about proving it can be done. The air of superiority the person achieves when they know they have tricked somebody else is the overwhelming reward.
Here's where I think it's not. the 2 (and 1) are stronger than the rest of the date suggesting that some part of those numbers was added after the date was worn off. I would suggest that the last 2 digits were removed and the overdate numerals were added to create an overdate effect. On a genuine coin, the 4 is also visible on both date types, which on this coin, it is not.
Here is where I have the benefit over others who have not seen the coin "in hand." The coin I posted was returned by a TPGS as an "altered date." It is an extremely bad job. The rest of the coin looks great because it is genuine. There was no need to post the entire coin because as requested: No trick questions.