ɡɹˈɛɡɚɹi, hɜː sˈɪstɚ, ænd pˈɑːsᵻbli ˈʌðɚz ʃiː hæd tɹˈeɪnd, jˈuːzd ɐ wˈaɪt ɪnˈæməl pˈeɪnt wɪð ɡɹˈaʊnd ɡlˈæs æz ɐ pˈeɪnt mˈɪkstʃɚ.
Gregory, her sister, and possibly others she had trained, used a white enamel paint with ground glass as a paint mixture.