***
My brother-in-law reports that this was picked up in Newnham College, Cambridge, and distributed by the Cambridge Students Union:

"Fight Poverty
Stop Fair Trade"
"This House believes Fairtrade is unfair
Proposition: Professor David R Henderson
Opposition: Mike Gidney
Thursday 6th March, 8pm
A debate on the nature of consumer ethics and whether Fairtrade actually jelps in the end
Also at the Union
Club nights, film nights, cheese tasting, wine tasting."
He was asking what RJC girls were doing on a British poster.
I was suspicious, because hard headed realism [Addendum: More articles to peruse] is not what you typically see from activists, let alone activist students. Perhaps this was another insidious manifestation of neo-colonialism, or part of the post-colonial backlash of the flower of our nation's youth.
After a few seconds of sleuthing, I found the original, from lynkgroup.org (confusingly, this is the homepage of fairtrade.sg):

"Fight Poverty
Shop Fair Trade"
Apart from the usual comments about plus ca change, I will deplore how cheapskate this is - not telling your audience that you photoshopped something when it is not obviously photoshopped.