Johto Mono's low single comma quotation mark is the perfect way to add a little bit of retro to your text. The low single comma quotation mark is used as an opening single quotation mark in various languages, including Czech, Slovak, Hungarian, Bosnian, Croatian, Serbian, Slovene, German, Dutch, Latvian, Lithuanian, Maltese, Afrikaans, and Icelandic. The low single comma quotation mark is a small, curved mark that is placed below a letter.