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18:26 ·
Known as the whip, this type of sign means, when appearing in the margin of a letter, supplement or supplements are enclosed. With the left point exchanged for a number the number of supplements enclosed is given.
The variation  is a trade and commerce sign meaning minus or with a reduction of...
The sign  is sometimes used as a synonym.
Compare these signs with the repeat signs in musical notation,  , and  , and with the sign  used in geometry to denote proportion.
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