Actually some of the photos are more recent than that, but they're all pretty old. I thought you might be interested to see the city as it looked from the vantage point of a casual stroller, about a hundred years ago.
That's regent Street above. No poor folks there. Employees of the shops often lived in nearby hostels. Click to enlarge.
This (above) is Billingsgate, under the shadow of the monument to the victims of the Great Fire in 1666.
In the 16th century this tavern (above) was frequented by river thieves and smugglers.
Above, Marylebone Station as it looked in the 1920s. Lack of funds meant the station had to be designed by a staff engineer, and he took a bolts and braces approach. It's still impressive.
Above, The Royal Courts of Justice. I spent a few hours here, being a tourist and looking in on a couple of cases. This is my favorite spot in London. What a debt we all owe to English law!
Many, many, many thanks to Kellie for the interesting links, which included this Youtube video.