My scale isn’t the best. I first measured one side of the holder – zeroed it out – then put the coin back together, flipped it over – weighed it. Kept going between 19 and 20. I believe this makes it the thick one. Comes in a box. If you want me to wrap the coin so it’s not jiggling in the plastic let me know. I’m not really a coin expert. I did not do the writing on the box. Had it checked out by a coin shop and they said it’s legit. They wrote that thing inside the box. I’ve never tried to clean it. Only touched it a couple of times since I acquired it.