Here is an amazing photo collection that shows underground system in London from between the 1950s and 1960s.
1. London Underground rat-catchers with their net and ferrets, ca. 1950.
2. A group of women cleaning one of London’s underground tunnels, 1952.
3. Advertisements being pasted up, 1952.
4. Tube cleaner, 1952.
5. Tube train at Picadilly Circus, 1952.
6. Liverpool Street, 1952.
7. Kingsway Tram, 1952.
8. Underground fluffers, 1954.
9. Underground life, 1955.
10. All-night dancing, 1955.
11. Downtown Soho, 1956.
12. Piccadilly Circus, 1956.
13. Rush hour, 1956.
14. Rush hour, London Bridge, 1956.
15. Tube music, 1957.
16. Silver trains, 1957.
17. Bus strike, 1958.
18. Oxford Circus, 1958.
19. Oxford Circus, 1958.
20. London Bridge, 1958.
21. Publishing liberalized, 1960.
22. Frenchman in London, 1963.
23. Oxford Circus, 1963.
24. Mystery package, 1964.
25. Sikh underground, 1964.
26. Piccadilly Circus, 1966.
27. Matching fur, 1966.
28. Tea on the Tube, 1968.
29. Station telephones, 1968.
30. Foot sore, 1969.
31. Bus queue, 1969.
(via BuzzFeed).