@Clinker. https://www.cointalk.com/threads/trivia-the-1878-morgan-dollars.49490/#post-543256 The article is more than 12 years old but it's still relevant, very interesting, and helpful. After reading it, I understand about the bent arrow. But that's not the end of the story. To my surprise, it's related to the 1878 Morgan, which is a coin in my hand-me-down collection! The bent arrow has to do with the "1878 with '78 reverse vs. '79 reverse," another topic I had planned to read up on (because it concerns a coin I have). So after all this, I wanted to send him a note of thanks to surprise him. Unfortunately, I don't think he's around anymore... And that got me to thinking about how some of the information posted by the seniors here (or even a 15-year old on the 2021 Morgan) could end up being helpful 10 or 20 years from now. Here's my Morgan. And thanks to @Clinker, I now know it's an 1878 with a '78 reverse.