Bicycle Tag of bike

Old:

http://www.lfgss.com/attachment.php?attachmentid=77115&stc=1&d=1385567979

The remnants of the former Gibbons department store in Amhurst Road, Hackney Central. Partly destroyed by arson years ago, now number 1 has developed structural problems and is going to be pulled down in a little while. Numbers 3 and 5 may survive, but it's not clear yet.

New:

http://www.lfgss.com/attachment.php?attachmentid=77114&stc=1&d=1385567681

Another one in an occasional series of strong colour contrasts. A clue (for the eagle-eyed) is in the picture. This is pretty easy if you know where it is, though.

All that Terex / Demag hardware renders me agog. That is all.

Thank you.