diagram style side-by-side of four railroad workers: waiter wearing light blue shirt, maroon waistcoat, black bowtie, black apron and pants; supervisor in light blue shirt, maroon suit jacket, black tie and pants; conductor in light blue shirt, maroon suit jacket and waistcoat with brass buttons, black tie, pants and conductor hat; cleaner in light blue shirt, maroon pullover, black pants; simple flat colors, minimal details, white background. See more