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| Punctuation || [[Apostrophe (punctuation)|Apostrophe]] [''' ' ''']{{efn|name=seconds_mark_note}} || {{audio|Morse Code - Apostrope.ogg|{{morse|dot|dash|dash|dash|dash|dot}}}}
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| Nonstandard <br/> punctuation{{efn|name=not-in-either-ITU-R}} || [[Exclamation mark|Exclamation point]], [''' ! '''] <br/> {{sc| {{overline|KW}} }} [[Digraph (orthography)|digraph]], {{nobr|alt. {{sc| {{overline|MN}} }}{{efn|name=exclamation_note}} }} || {{audio|Morse Code - Exclamation Point.ogg|{{morse|dash|dot|dash|dot|dash|dash}}}}<br/> {{nobr|alt. {{audio|Ö, Ø, Ó Morse Code.oga|{{morse|dash|dash|dash|dot}}}} }}
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| Punctuation || [[Slash (punctuation)| Slash ]] or [[Fraction (mathematics)|Fraction bar]] [''' ''/'' '''] <br/> {{sc| {{overline|DN}} }} [[Digraph (orthography)|digraph]] || {{audio|Morse Code - Slash.ogg|{{morse|dash|dot|dot|dash|dot}}}}
=== Symbol representations ===
The symbols {{char|['''!}}'''], {{char|['''$}}'''], and {{char|['''&}}'''] are not defined inside the official [[ITU-R]] ''International Morse Code Recommendation'',<ref name=ITU-R-M-1677/> but informal conventions for them exist. (The {{char|['''@}}'''] symbol was formally added in 2004. The {{char|['''%}}'''] and {{char|['''‰}}'''] symbols both have recommended ~transcriptionslong encodings<!-- TODO fixme terminology -->.<ref name=ITU-R-M-1677/>)
; Exclamation mark : There is no standard representation for the [[exclamation mark]] {{char|[''' !}} '''], although the {{sc| {{overline|KW}} }} [[Digraph (orthography)|digraph]] ({{morse|dash|dot|dash|dot|dash|dash}}) was proposed in the 1980s by the [[Heathkit]] Company.{{efn|[[Heathkit]] was a popular, long-standing vendor of kits for amateur radio equipment.}} While Morse code translation software prefers the Heathkit version, on-air use is not yet universal, as some amateur radio operators in North America and the Caribbean continue to use the older {{sc| {{overline|MN}} }} digraph ({{morse|dash|dash|dash|dot}}){{efn|name=exclamation_note| {{sc| {{overline|MN}} }} or {{sc| {{overline|OE}} }}, {{morse|dash|dash|dash|dot}}, which some telegraphers unofficially use for an exclamation mark {{char|[''' !}} '''], is shared with unofficial letters {{sc|Ö}}, {{sc|Ó}}, and {{sc|Ø}} used in some non-Latin alphabets.}} copied over from [[American Morse code|American Morse landline code]].
; Currency symbols : The ITU has never formally codified any [[currency symbol]]s into Morse code: The unambiguous [[ISO 4217]] currency codes are preferred for transmission ([[CNY]], [[EUR]], [[GBP]], [[JPY]], [[South Korean won|KRW]], [[USD]], etc.).
: The {{char|$}} sign code was represented in the [[Phillips Code]]{{efn|The [[Phillips Code]] was a huge collection of abbreviations used on land line telegraphy.}} as two characters "{{sc|SX}}", which became merged into {{sc| {{overline|SX}} }} ({{morse|dot|dot|dot|dash|dot|dot|dash}}).
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