For those of you on the forum who use Numista like I do, they added a very nice feature about six months ago I just discovered. You can add sets as a whole now instead of adding the individual coins, which took forever. Here's a link to the 2025 US Proof set as an example.
https://en.numista.com/catalogue/set.php?id=12If you go and search through your Lincoln cents it will show the individual coins and note that they are part of the respective set.