It's struck on a Copper Plated Zinc It was Struck at the Denver Mint - D Mint Mark Total Produced: 4,922,894,000 And.. your title is wrong. You put 1992 Always review your thread before hitting the Create Thread button!
It is probably Deterioration doubling. That is worthless doubling. Also.. start your own unique separate thread. And if you are using Tapatalk to upload pictures it does not work well on Cointalk.
I'm new don't know much about this site and no it's not Deteriorating it's a good looking penny and also has AM pretty Damm closed that's compering it to another 1992 penny
It is close only because the copper plating has detached and formed a bubble between the A and M. The designers intials are close to the Memorial which indicates a Wide AM.