S813 FVK 06 Aug 2015, 6:00 pm #53 S813 FVK S813 FVK S813 FVK Posts: 6032 Threads: 9 Joined: Mar 2014 Reputation: 0 RE: Arriva North East: Rare & Odd Workings - August 2015 (05 Aug 2015, 6:06 pm)Diamond One wrote Frequenta Gas Bus on X21 today in Sunderland A day late but the vehicle was 4803: NK13CFF Arriva Darlington 4803 by John's bus gallery, on Flickr