| Unidentified photographer Sisters [Schwestern] 1855 (ca) Daguerreotype 6.6 x 5.5 cm (image) 7 x 8.3 cm (plate) Private collection of W. & T. Bosshard Courtesy of Carl Mautz Vintage Photography & Publishing LL/16219 This Daguerreotype was published in Kunst und Magie der Daguerreotypie Collection of W. + T. Bosshard by René Perret (2006), p.65
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