Green phone box - Seven Sisters Country Park - 26.7.2013

This box was green, when we came down in 2009, went red briefly and is now green again! A red one, near our house, when we lived in London, was reputedly a listed building.
I have just discovered one in one of my Rye photos is definitely a listed building on the English Heritage register.
As it is green, this may no longer be a BT (British Telecomms) phonebox, but its certainly has been in the past.