just came across this while digging, any cryptographyfags want to take a look, this is a bit above my pay grade lol
>has to do with washington's secret spy network back in the day and the encoding of messages and names
https ://www.endeavorcharterschool.com/cms/lib/NC01000873/Centricity/Domain/74/Culper%20Spy%20Ring%20-%20decode%20the%20messages.docx