On May 25, 4:17 pm, Roland Perry wrote:
Look at the top right hand side of the ticket, inside the orange stripe.

It will say "Issued as
N coupons"

Not on this occasion. My tickets used to say this.

Your comment prompted me to look at tickets for recent journeys.
The last ticket which contained this information correctly was for a
journey on 16 April 2008 from Newcastle to Leeds. The ticket was
marked "Issued as 2 coupons" and the reservation "Retain for
inspection" and "Valid only with ticket 87223".

But things began to go wrong with a journey from Leeds to London on 22
April 2008, which was marked "Issued as 01 coupons", which is silly.
The associated reservation was marked "Retain for inspection" and
"Valid only with ticket 57558".

All advance tickets issued to me since that date are printed "Valid
only with reservation(s) and the reference to the number of coupons
has disappeared. Similarly, "Valid only with ticket xxxxx" has been
replaced by "Valid only with travel ticket".

Unless unable to book there, I use the NXEC site and a station
FastTicket machine. But even a ScotRail sleeper ticket issued on 19
May 2008 is in the new format.

This brings me back to my question whether there is any rule that I
must use a non-reservable train from York to Leeds. Roland Perry
agrees with me that there is not. Jonathan disagrees and says that the
ticket can only be used on a non-reservable train. Is there any
evidence one way or the other?

John