S813 FVK 27 Jun 2015, 12:56 pm #261 S813 FVK S813 FVK S813 FVK Posts: 6032 Threads: 9 Joined: Mar 2014 Reputation: 0 RE: Arriva North East: Rare & Odd Workings - June 2015 (27 Jun 2015, 12:55 pm)Michael Euston wrote 1433 pulsar on X4 Middlesbrough to Whitby Sapphire route. 15 minutes late through Brotton. Probably using the Sapphire buses on X93. Probably covering for 1570 as that is on the 22.