Chronoyster - 23 December 1865

On 23 December 1865, the Metropolitan District Railway (as it was now known) extended from Farringdon to Moorgate.

Route map of London Underground as it was 23 December 1865

Barbican

The memorial plaque to much-missed station cat Pebbles...

... and the "lifetime achievement award" Pebbles was due to receive with partner Barbie, but sadly he died before it could be presented.

Moorgate

The Metropolitan seems to be the one line that didn't like playing nicely with the others. When the iconic roundel was introduced, the Met went with this diamond. It's not an original sign by the way.

Next : 1 February 1866