Set of SEVEN miscellaneous stereoscopic viewers, some with photographs, including : - one of the mexican type. With over forty positive stereoscopic views, circa 1880's, medium full size approx. 9 x 18 cm, on various subjects (examples: "Harlem Hôtel de Ville", "Parc de Versailles", "Pont de Suresnes", "Avenue des Champs-Elysées", "Vernex et le château de Châtelard", "Jardin du Luxembourg", "Le Ruchenberg", Switzerland, Belgium, "Vues des Pyrénées", etc.). - a second. - two hand-cranked "Unis-France Stereoscopes Paris". ATTACHED: - a Graphoscope. - one accessory in box.