ɐdˈɪʃənəli, ɪn ɐpɹˈɑːksɪmətli ðə tˈuːhˈʌndɹɪd ˈeɪɾi,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ sˈɪɹiəl nˈʌmbɚ ɹˈeɪndʒ, ðə lˈɛft sˈaɪd slˈaɪd ɪnskɹˈɪpʃən wʌz ˈɔltɚd tʊ ɪŋklˈuːd ðə pˈæʔn̩t dˈeɪt fɚðə dɪskənˈɛktɚ, ˈɔːlsoʊ nˈoʊn æz ðə “tˈænsli dɪvˈaɪs”.
Additionally, in approximately the 280,000 serial number range, the left side slide inscription was altered to include the patent date for the disconnector, also known as the “Tansley Device”.