The 12's lost the Oxford Circus to Notting Hill section, RML's and it's conductors in the early hours of 6th November 2004. Here are some pictures from the last year of operation.
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RM9 is seen at dusk, with the Last day of crew operation special intermediate blind.
Always nice to see an RM is near original condition!

RM994 in Barry Road on the same day just arriving at the Dulwich terminus.
Note the re-registration which had occurred just a few weeks before.

RM2051 stands at Dulwich on the last day of crew operation, showing the offside route branding.

RML2454 at Camberwell Green at the start of the evening peak 5th November 2004.

One of the visitors to the 12 was Ensignbus's RML2405 on the same day looking very smart at Camberwell, heading northbound.

RML2276 also on the last day of crew operation, on a short working to Lancaster Gate. This bus was caught late in the afternoon at Camberwell Green.

RM2106 looking rather shabby in Oxford Street in early April 2004 with 7 months left to go.

On a Dulwich to Oxford Circus working and showing its route branding is RML2474 seen in June 2004. At one point a number of routes had branding of some sort, but I think the 12 was the last Routemaster route to do so.
The 12 has a long history and was interesting in that it still worked in overlapping sections and even within that had scheduled short journies.