In article , (Roland Perry)
wrote:

In message , at
14:19:12 on Sun, 4 Sep 2016, remarked:

From time to time there have been "all day rover tickets" but
perhaps only from 9/10am onwards.

and not as early as 1970 either.

Here's a Twin Rover ticket from 1967:

http://www.yellins.co.uk/transporthi.../redrover.html

My recollection is that they weren't valid in the morning peak.

--
Colin Rosenstiel