United States One Hundred Dollar Bill

Clock Face of Independence Hall

Changed from 4:10 to 10:30.

Old clock time on $100 is "4:10" before the hundred dollar redesign.

"Think Mirror" time becomes 10-4 (Acknowledgment(ok)).

Who is acknowledging ok?

New clock time on $100 bill Series 2009 redesign is "10:30"

Plain decode of 10-30 Unnecessary Use of Radio.

Who was unnecessarily using the radio?

Speculative decode of 10:30.

Maybe 10:30 is TWO codes with a prefix of 10 unspoken.

10-10 Fight In Progress. Who is fighting?

10-30 Unnecessary Use of Radio. Again who is using the radio?

DROP the zeros and find the TWO ten codes of 10:30.

10-1 Unable Copy - Change Location. Who did not copy? Who changed location?

10-3 Stop Transmitting. Who stopped transmitting?

The time on the clock of Independence Hall on the reverse, according to the U.S. Bureau of Engraving and Printing, showed approximately 4:10[5] on the older contemporary notes and 10:30 on the newer colorized notes.

The Series 2009 $100 bill redesign was unveiled on April 21, 2010, and was issued to the public on October 8, 2013.[6]

https://en.wikipedia.org/wiki/United_States_one-hundred-dollar_bill

Police 10 Codes General Purpose

10-1 Unable Copy - Change Location

10-3 Stop Transmitting

10-4 Acknowledgment (OK)

10-10 Fight In Progress

10-30 Unnecessary Use of Radio

https://copradar.com/tencodes/mgeneral.html

The Time on the Clock Was Changed on the New Bill

If you have an eye for detail, you might have noticed that the time on Independence Hall’s bell tower clock on the back of the old $100 bill read 4:10. It was changed to 10:30, however, on the new ones.

No one seems to know why either of these times was chosen, but both images — the north and south views — were engraved by J.C. Benzing in the 1920s. It is assumed that he took pictures of the building at different times of day, which would explain the clock discrepancy.

https://varietyerrors.com/currency/the-100-bill-30-facts/