Kenndey Half

I found this today in a bunch of change I had been saving in a jar for the last few years. Does anybody but me see the "S" under the P? And there's also something next to the 2 that I can't make out. What would have caused this? I'm certainly no expert on coins, so would like some input. Thanks
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Sleep well tonight for the 82nd Airborne Division is on point for the nation.
AIRBORNE!