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A Cape foot is a unit of length defined as 1.0330 English feet (and equal to 12.396 English inches, or 0.31485557516 meters) found in documents of belts and diagrams relating to landed property.
A twip (abbreviating "twentieth of a point", "twentieth of an inch point", or "twentieth of an Imperial point"[citation needed]) is a typographical measurement, defined as 1/20 of a typographical point. One twip is 1/1440 inch or 17.639 µm.