I thought the left coin was fake (before the reveal) due to the shallow letter relief and the surfaces looked too bland. On the right coin you can see the traces of flow lines near the rim. Some have remarked about the reeding mark on the chin but be careful as I have seen fake reed marks applied to fakes as well.
Regrettably, I am forced against my Will, to question your teaching methodology and question formation. The Statement: "One peace dollar is genuine the other is not". The follow-on commentary: Do you understand that the answers could have been correct for left as well as right? "ONE PEACE DOLLAR IS GENUINE THE OTHER IS NOT" The Right is genuine, in my opinion and in compliance with the intent of the Thread Title: "One is genuine". However, other members could be correct by applying an understandable interpretation and be in compliance with the Thread Title: " the other is not". I think you did this deliberately. The alternative is you suck at wording Exam questions, and should not be allowed to play with the other kids. Another alternative is you are clowning around. Another alternative is you did not consider is you confused your right from your left. It happens to old people. I know.
I thought I was voting the right coin is real, not the fake. Now I can see that my short answer could go either way.
Thanks for great post.The reeding on fake coin did not extend to rim of but right side has clear definition.
Note: That signifies nothing. You only see part of the rim and all sorts of things like that happen to both C/F and genuine coins.
Absolutely not! On a scale of one to ten, this coin is a one to a trained authenticator. It has no chance in heck to get past any competent collector either.