LSE4105670 San Francisco funicular tramway with invisible wheels - in ??s??? The new conquests of science?????? by Louis Figuier, 19th century by French School, (19th century); Private Collection; (add.info.: San Francisco funicular tramway with invisible wheels - in ??s??? The new conquests of science?????? by Louis Figuier, 19th century); Photo ?? Leonard de Selva.