Size of the Donut Hole

This guy was photographed holding a chart that documented the size of the donut hole over the years. In 1927, the hole was visibly larger. In fact, it looked more like an onion ring than a donut. But by 1936 and 1948, the hole had shrunk significantly. The hole shrinkage is reportedly the result of donut machines punching smaller holes. But eventually, they became the standard size that donut shops model these tasty treats after.
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