So I was coin roll hunting moments ago and I found this 1992 the reverse side in United States of America seems like it's doubled can you look at pictures and tell me if it is thank you.
the copper plating is 8 microns thin. Many times it gets stretched and it may rip, which is what you are seeing. A key indicator of "split plating" is you see a sliver of silver looking metal, which happens to be the zinc core. The copper plate has stretched and ripped open from the minting process thus exposing the zinc. Kinda like stretching thin aluminum foil, sometimes it rips and leaves a gap.