xkcd #3138: Dimensional Lumber Tape Measure
Title text:
A person with two watches is never sure what time it is, especially if I got them one of the watches.
Transcript:
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Source: https://xkcd.com/3138/
That will go nicely with a tape measure that uses the Chinese inch (cùn), which is equal to 1.312 imperial inches
Not Chinese imperial inches?