It is missing because it is an Overpolished Die. Do you see the Roof it looks like it is floating? Also caused by Overpolished Die. It is known as the Floating Roof Variety. That's why you should always show the entire Obverse and Reverse
Got it Paddyman...checked and found that it is not unusual to find the missing Initials ....Bud told me to photo the entire coin but I was too lazy as usual. <-upset with me