Why is this not known more?
In its original form, stamp scrip was a piece of paper on which a number of boxes were printed. The note would lose its validity unless a stamp costing 1% of its value was stuck in one of the boxes every month. In other words, the currency lost value over time, so there was no incentive to hoard it. Stamp scrip projects took off across Germany and Austria after national currencies collapsed in the early 1930s. In 1932, for example, the Austrian town of Wörgl was almost broke, unable to finance public works or to support its destitute population, until the mayor heard of Gesell’s proposal.
He put up the town’s tiny remaining fund as collateral against the same value of stamp scrip, and used it to pay for a building project. The workers then passed on the currency as quickly as they could. Like the magic pudding, this little pot of money kept circulating, enabling Wörgl to repave the streets, rebuild the water system, construct houses, a bridge and even a ski jump. In the 13 months of the experiment, the 5,500 scrip schillings in circulation were spent 416 times, creating between 12 and 14 times as much employment as the standard currency would have done. Unemployment vanished, and the stamp fees paid for a soup kitchen feeding 220 families.