(03 Aug 2015, 8:22 pm)MurdnunoC wrote Are you on about the 'Tyneside Toughened' glass?
If so, it is used in vehicles all over the world - buses included.
http://www.tynesidesafetyglass.com/indus...sport.html
The large photo of an Optare vehicle proves I was incorrect previously..!
I've never noticed the logo on Optare buses, if I'm honest.