Set of 3 Night Tube guides - October 2016, December 2016 and May 2017

This is a set of 3 different London Underground 'Night Tube' guides dated October 2016, December 2016 and May 2017.

The leaflets are 70mm wide x 150mm deep and fold out to show the Night Tube network.
The reverse has an index to stations served.

They are in very good condition with no markings (see photos).

I will send these by Royal Mail letter post and will obtain a Certificate of Posting.