@E&V, first, thank you. What do you mean by it was struck with a completely different die? Is that some kind of error though? I am seeing DD on some devices but maybe my eyes just playing tricks on me.
@Tanman2001, thank you for pointing out the Mintmark I should be aware of.
@John, I am learning through reading and researching but it's really hard to a beginner like me with untrained eyes not to get confuse and ask questions in which I really do appreciate as we have some experts here giving and sharing their own time to chime in and give their expert opinions and the displayed patience and knowledge to make us better understand our given inquiries are duly noted.