"Mind the Gap"

I'm an Anglophile, or at least a lover of the country as it once was, and, apart from visits, my sense of place was largely formed by films and books written about the country before or during the first half of the last century. Today, Conservative History Journal, a British site, called my attention to "London Underground posters dating back a century to fetch £500,000 at Christie's auction":

An extraordinary collection of more than 300 vintage London Underground posters which date back to as early as pre-World War One are set to fetch a combined £500,000 at auction next week.

The posters, which include slogans such as 'Shop Between Ten & Four’, 'Please Pass Along The Platform' and 'The Lure of the Underground' are expected to go for £800 to £15,000 each.

Auctioneers Christie’s described the chance to buy the posters - which date from 1913 to 1955 and are being held in South Kensington, south-west London - as ‘unrivalled and never-to-be-repeated’. ....

This one is from 1926:

Here are more London Underground posters for sale - nice!