dʒˈɑːn wˈɔltɚɹ ˈɑːsboːɹn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd twˈɛnti ˈeɪt nˈaɪntiːnhˈʌndɹɪd tˈuː dɪvˈɛləpt ɐ sˈɪmɪlɚ pɹˈɑːsɛs ænd fɚðə sˈeɪm ɹˈiːzənz æz sˌɜː hˈɛnɹi, tʊ ɐvˈɔɪd jˈuːzɪŋ ðə tɹˈeɪsɪŋ sˈɪstəm ʌvðə pˈæntɐɡɹˌæf.
John Walter Osborne (1828–1902) developed a similar process and for the same reasons as Sir Henry, to avoid using the tracing system of the pantagraph.