Nope it was a coordianted ATOC effort to lower costs by utilising "Orange Hopper Stock" as widely as possible.
Not many actually, the full list seasons and non-seasons can be found within the FRPP and is as follows:
- Common Stock Season - Light Blue
- Period Season Ticket - Light Green
- Period Season Travelcard - Light Blue Travelcard Stock
- Annual Gold Card - Gold
- Annual Gold Travelcard - Gold Travelcard Stock
- GMPTE County Bus & Train Saver - Green County Bus & Train Saver Stock
- WYPTE MetroCard - Several Colours (depending on zones covered) MetroCard Stock
- SYPTE Travelmaster- Yellow and Purple Travelmaster Stock
- Network West Midlands nnetwork/ntrain - Several Colours (depending on type held) nnetwork/ntrain Stock
- WYPTE Day Rover - Pictoral Designed Day Rover Stock
- Southern Daysave - Green Daysave Stock
- All National Rail Railcards
NEW POST
This is very strange indeed, especially considering the following facts.
All current accredited ticket office TISs use thermal printers to issue their tickets. For the printer to be able to actually print any information on the ticket, the stock being placed into the machine must have a thermochromic coating. It is this thermochromic coating that turns black where the heating has taken place which displays the text onto our tickets (you can try this yourself on a used ticket, if you place a heat source onto the ticket such as a radiator it turns the ticket black in that spot).
With NSE being disbanded in 1994 along with privatisation, the stock the season ticket holder holds must be a plain paper card APTIS designed ticket stock. The significance of this is that APTIS ticket stock does not have any thermochromic coating because the APTIS ticket machine printed using ink in a dot matrix fashion. Therefore no current accredited TIS would actually be able to issue this ticket on said stock. It may be an idea to double check that ticket's validity...