Indianvarieties.com lists every true die variety reported to it. Just enter the date and the variety list appears, everything from doubled dies to die clashes. Most entries include photomicrographs.
As a dealer, I have found that collectors and even other dealers will pay extra for any variety, even if it is not notated on the TPG insert. PCGS will note any variety if they agree with it but will likely call it "minor" if it is unlisted in any major reference. NGC only recognizes varieties listed in its Variety Plus site.
Varieties are yet another enjoyable way to collect coins. I wish that CAC would list more major varieties in its pop report.
Comments
Thanks so very much @CACfan for providing this information!
Steve