Fisher, Jami N.Tamminga, MeredithHochgesang, Julie2023-05-222023-05-222015-10-312019-10-08https://repository.upenn.edu/handle/20.500.14332/33149Philadelphia Signs Project video with participant discussing confusion with old signs.http://creativecommons.org/licenses/by-nc-sa/4.0/Philadelphia Signs Projectsociolinguisticsdeafsign languageAmerican Sign LanguageASLregional variationLanguage Description and DocumentationArticle