The windows of a 122 bus were graffitied while it was going between Crystal Palace and Plumstead bus garage in Thamesmead, on May 20.
These two youths were on the bus at the time.
They got on in Sydenham Hill, Forest Hill, at 9.50pm and got off again at 9.58pm in Brockley Rise, Forest Hill.
Do you know who they are? Call BusTag on 020 7027 8950 or Crimestoppers on 0800 555111.
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