Arriva North West - Birkenhead Depot

[wirralbus]

RE: Arriva North West - Birkenhead Depot

(10/01/2017 15:00)Raawwwrrr! Wrote:  All legal lettering and fleet numbers are applied by Wrightbus.
Only the Arriva logo's, internal stickers, external branding and livery details are applied by Arriva themselves

I understand legal lettering being done by the manufacturer , but fleet numbering how come.

Surely someone should notice then if a bus has come out of Wrightbus with two different numbers on it a bit different to having entirely the wrong fleet number on a vehicle.