I was reading a history book last week on local history. In 1898 a local man was getting a lot of mail. A LOT of mail. Made the postmaster curious, so he opened some and found they contained money.
Seems the fellow sent out thousands of letters, on nice embossed letterhead paper from the "Sidney Grand Hotel", saying a relative of theirs had died, and please send the funds to have his steamer trunk delivered. The letter said that he had opened the trunk and inventoried the contents, and they included deeds to lands in the the Black Hills (gold mines), as well as the deceased's last will and testament.
At the time, Nebraska had been a state for a while, and the Federal law against mail (and telegraph!) fraud was on the books, so the Feds got him. They sentenced him to 30 years.
Same scam, 100 years later!