Recent Examples of trefoil from the Web
The latest inexplicable fad has young teens building collections of the palm-sized trefoils.
A four-leaf clover, on the other hand, is a mutation of the trefoil plant that superstitious people believe carries good luck.
By the 1930s, as enrollment soared to more than 200,000 members (up from a mere 18 in 1912), the organization regularly issued tools such as pocket knives, first-aid kits, match safes, and canteens emblazoned with their trefoil logo.
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