Alongside the Licensing of Bus Drivers and Conductors the Licensing of Drivers of Hackney
Carriages is a related yet separate subject.
I have little knowledge regarding the badges issued or the chronology of them and
information would be gratefully received. It is assumed that, as with PSV issues,
separate badges were issued for drivers of 'Animal Power' and 'Mechanical Power'.
I have categorised these as 'TA' and 'TM' respectively.
I have also added vehicle licence plates here
as 'TL' although these plates were also carried by trolleybuses and, for a while, buses too.