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๐ ๐ฝ๐ฑ๐ฒ๐ท๐ด ๐ฌ๐ช๐น๐ฒ๐ฝ๐ช๐ต ๐ ๐ฒ๐ผ ๐น๐ป๐ธ๐ซ๐ช๐ซ๐ต๐ ๐ฝ๐ฑ๐ฎ ๐ถ๐ธ๐ผ๐ฝ ๐ฏ๐พ๐ท ๐ฝ๐ธ ๐๐ป๐ฒ๐ฝ๐ฎ, ๐ฝ๐ฑ๐ธ๐พ๐ฐ๐ฑ ๐ต๐ธ๐๐ฎ๐ป๐ฌ๐ช๐ผ๐ฎ ๐บ ๐ฒ๐ผ ๐ช๐ต๐ผ๐ธ ๐ช ๐ผ๐ฝ๐ป๐ธ๐ท๐ฐ ๐ฌ๐ธ๐ท๐ฝ๐ฎ๐ท๐ญ๐ฎ๐ป.
They are not especially useful now, but back before everything was computerized, signing your name on a check or a credit card receipt was a way you could help stop people from committing fraud if they stole your card or your checkbook.