Charles Ponzi (1920): The Post prints the gap · 291

What the Ponzi record actually shows The Boston Post series, federal mail-fraud papers, and Massachusetts larceny dockets are the primary sources. They describe a 1920 promotional collapse, not a puzzle about whether the coupon story could have scaled. A real instrument, an impossible book

International Reply Coupons existed. Postal authorities sold them so a correspondent abroad could send a reply without buying local stamps. Small price differences between countries were a known curiosity among people who followed postal circulars. What the 1920 investigations showed is that the global stock and daily issuance of coupons were tiny beside the cash Ponzi was taking. The Post and Barron treated that mismatch as the public proof that the advertised engine could not be running at the advertised scale.

Notes promising 50 percent in 45 days, later advertised at still higher rates, drew working- and middle-class depositors as well as larger tickets. Agents were paid to recruit. The Securities Exchange Company became a local sensation. As newspapers questioned the arithmetic, some investors redeemed and others doubled down. The run and the reporting arrived together. Authorities took books and stopped new intake.