I know this vehicle is with DBNW but just seen an older pic where it was at Irvines inbetween Arriva and Rotala. I noticed its n bus sticker on the front. Did the vehicle spend some time with Arriva in the West Mids.
https://www.google.com/search?q=sn56awz&client=ms-android-samsung-ga-rev1&source=android-browser&prmd=mvin&sxsrf=ALeKk03U5Z7jFLfw_s2iHzt93mMbOlhdzA:1593374842024&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjMrM_rp6XqAhXVuHEKHbzbBCIQ_AUoA3oECAoQAw&biw=412&bih=678&dpr=2.63#imgrc=snN6HxjxZCu1tM
It ran from Tamworth garage for a few months in 2008
Thanks Tony. Explains that then.
There is a shot of it at Tamworth on Flickr:
https://www.flickr.com/photos/128987711@N07/26270670842/