Plajomzn

So the said coin is a 1890 no mintmark , vf condition coin, Few days ago I decided to check its diameter and its 1mm off, it’s supposed to be 38.1, but mine is only 37mm, it’s also smaller compared to my real Eisenhower dollar which is supposed to be the same size. I tested the coin with the ping test and it sounds fine, it has the correct ping but little quite, I posted it on Reddit page few times too , and in the comments they thought it looked ok, the other thing is, I haven’t weighed it properly yet, because I only ordered coin scales few days ago and they haven’t arrived yet, but from as far as I tested it’s between 26-27grams on 1 gram precise scales. What do you think about it?