Talk:London Transport (brand)

Origins
The sentence at the end of this section: "The use of modern graphic posters to advertise public transport began in this period is a ratio" needs to be reviewed. I don't understand why "the use of modern posters ... is a ratio". A ratio is a comparison - what comparison is being discussed here?Haynesta (talk) —Preceding undated comment added 11:15, 28 December 2019 (UTC)