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one hand. This pressure causes the flexible walls to arch outward, making the central slit widen. Coins or other small objects can then be accessed quickly and easily.

When the pressure is released, the material naturally returns to its original shape. The slit closes again, creating a simple self-sealingmechanism. This combination of flexibility, simplicity, and convenience made the design remarkably practical for everyday use.

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Squeeze coin purses became especially popular from the 1950s through the

1980s in North America and Europe. They were particularly useful when coins were essential for public telephones, buses, parking meters, vending machines, and