Brompton 50T chainring new condition

[jay clock]

This chainring is as new having done about 5 miles testing it out, after which I changed it for one with fewer teeth. Off the latest Brompton (2014 model) and looks like this

New is £24 RRP here http://www.evanscycles.com/products...Fo-jvEIBp-llMjdh9fGr_xoCk5bw_wcB&gclsrc=aw.ds

I am asking £17.50 posted