Everett reads the paper and works in an office so we know he’s literate.
There were special tellers cages for handling bank notes in old banks. They would lock the clerks in when the bank opened and let them out after the cash transactions were reconciled at the end of their shift. This seems to be a “modern” bank with counter service rather than a cage.
Let me introduce you gentleman to Doug Prasher.
https://www.science.org/content/article/man-who-wasnt-there
He was years ahead of the field in molecular biology but was parking cars when his work won a Nobel Prize…for other people.