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Comment on
Tracey Bryan
's answer to
What is the rationale behind standard paper sizes like A4 and A3?
Brian Beej Hall
This "halving" situation is also fantastic for envelope sizes. A C4 envelope will hold a sheet of A4 paper. A C5 will hold A5... or A4 folded in half. A C6 will hold A6, or an A4 folded in quarters.
Not that I'm envious, or anything.
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Not that I'm envious, or anything.