Hello friends, it's a pleasure to be part of the forum, recently a very good opportunity appeared, a non-serialized penny copper that could possibly be a sample (the seller informed me that it was a sample), which is leaving me intrigued is on the left there is no marking/serials and on the right I have this mark, I would like your opinion, without a doubt making a comparison it really seems to be legitimate, but what about this issue of marking?