A late 19th century Patent Folding Mirror attributed to Peter Wiederer, New York City USA 1880-1905.
23.5 x 23.5cm
The mirror frame is stamped "Patent No 182635, 26 Sept 1876" and the catch has "Brevete SDGD LB 1876". The Patent is for the tri-mirror that folds within a frame. A letter with the patent reads "Be it known that I, LUDGER TIBURCE BERTON, of Paris, France, have a new and improved Mirror or Looking-Glass, of which the following is a specification this invention relates to an improved mirror or looking-glass by which the reflections may be multiplied so that a person may see himself from several sides without change of position.