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The OCR-A subheading contains six characters taken from the [[OCR-A]] font described in the ISO 1073-1:1976 standard: {{unichar|2440|OCR HOOK}}, {{unichar|2441|OCR CHAIR}}, {{unichar|2442|OCR FORK}}, {{unichar|2443|OCR INVERTED FORK}}, {{unichar|2444|OCR BELT BUCKLE}}, and {{unichar|2445|OCR BOW TIE}}. The OCR bow tie is given the [[Unicode character property#Name|informative alias]] "unique asterisk".
The hook, chair and fork, in addition to a long vertical bar, are included in the most basic "numeric" implementation level of OCR-A, which includes digits but excludes letters and conventional punctuation.<ref>{{cite web |url=https://ecma-international.org/wp-content/uploads/ECMA-8_2nd_edition_january_1977.pdf |title=Nominal Character Dimensions of the Numeric OCR-A Font |edition=2nd |id=ECMA-8 |year=1977 |author=European Computer Manufacturers Association |author-link=Ecma International}}</ref> By contrast, the most basic implementation level of [[OCR-B]] instead includes the digits, [[plus sign]], [[less-than sign]], [[greater-than sign]], long vertical bar and seven of the capital letters;<ref>{{cite web |url=https://www.open-std.org/JTC1/SC2/WG3/docs/n470.pdf#page=12 |page=8 |title=9.1: Subset 1: Minimal alphanumeric subset |work=Proposal for Type 3 Technical Report, TR 15907, Information technology—Revision of OCR-B standard (ISO 1073-2:1976) |id=ISO/IEC JTC1/SC2/WG3 N470 |date=1998-09-28 |author=ISO/IEC JTC1/SC2/WG3 |author-link=ISO/IEC JTC 1/SC 2}}</ref> as such, there are no characters specific to OCR-B in the Optical Character Recognition block.
===MICR===
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