triangle métallique vertical contenant deux miroirs, surmonté d'une lentille horizontale, permettant la lecture de formes colorées sur un plateau métallique tournant ; base en bois
American Symmetroscope Company
47 Winter St., Boston, Massachussets
American Symmetroscope Company
47 Winter St., Boston, Massachussets
American Symmetroscope Company
47 Winter St., Boston, Massachussets
Informations non disponibles
Informations non disponibles
6 mm
Ouvert :
Longueur : 9 cm
Largeur : 9 cm
Hauteur : 16.5 cm
Fermé :
Longueur : 9 cm
Largeur : 9 cm
Hauteur : 16.5 cm
Diamètre :
Informations non disponibles
Informations non disponibles
Marque sur le triangle métallique : "The Symmetroscope registered. Pat' March 7th 1899 other patents pending. The American Symmetroscope Co. Manufacturers, Boston, Mass. USA".
Etiquette sous la base en bois : "The Symmetroscope, Pat. Mar. 7, 1899, Other Patents Pending, Manufactured by American Symmetroscope Co., 47 Winter St., Boston, Mass., U.S.A. Directions : Place on the white disk bits of Colored Cloth, Flowers, Mosses, Tea Grounds, Orange Peel, Potato Parings, Postage Stamps, Coin, Brass or Iron Turnings, or any other small object. Revolve the disk until the objects can be seen through the lens, and you will behold the most beautiful, varied, and original designs conceivable".