Keywords: Le trottoir roulant, Exposition Universelle 1900.jpg Moving walkway at the 1900 Paris World Fair The right platform would have been immobile while the two left platforms were moving at different speeds 1900 photographic print 20 4 x 25 9 cm Institution Brown University Library object history exhibition history credit line Published in Neurdein frères and Maurice Baschet Le panorama Exposition universelle Paris Librairie d'Art Ludovic Baschet 1900 accession number 1303844357375001 PD-old Images of Paris from the Brown University Library Le panorama Exposition universelle Moving sidewalk Exposition Universelle 1900 |