The '4' is open.
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The dot on the '?' (question-mark) is square or rectangular.
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The upper-case 'G' has a bar to the left.
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The dot on the lower-case 'i' or 'j' is square or rectangular.
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The lower-case 'u' has no stem/serif.
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Note that the fonts in the icons shown above represent general examples, not necessarily the two fonts chosen for comparison.
Show Examples