CBS Outdoor launch a clue-based brand-hunt tomorrow celebrating 150 years of adverts on London Underground. The challenge, should you choose to accept it, is to work out the identity of 150 brands that have advertised their products on the tube. Like their Look for Longer poster, it's a fiendishly fun puzzle.
The clues take the form of two posters: one featuring close-up product snapshots (pictured) and the other displaying brand strap-lines, both of which will be displayed over the next two weeks at 78 participating London Underground stations.
If you think you can recognise the brands from the images or strap-lines, then you can play the game online at www.150brands.co.uk. If you manage to guess all 150, not only will your friends/family/colleagues/fellow travellers fawn at your feet in admiration (maybe), but you also get entered into a draw to win a year’s free travel.
Participants have until 25 August 2013 to submit their answers to the website. If you get stuck, need some help, or just want to brag about how brilliantly you are doing, a #150brands hashtag has been set up allowing fellow tubers to see how they are faring against one another.
How many can you spot?
Have you seen: