A steam train travelling on a track situated along the sidewalk above the level of the shops in New York; carriages and horse-drawn trolley buses are in the street. Wood engraving by J.R. Brown.

Licence: Public Domain Mark

Credit: A steam train travelling on a track situated along the sidewalk above the level of the shops in New York; carriages and horse-drawn trolley buses are in the street. Wood engraving by J.R. Brown. Wellcome Collection. Source: Wellcome Collection.