DMBS: BR 606 and DTC: BR 607
BR33003/22, this was an edition from the 33003 series.
In 1961 a new version was issued covering all Blue Square vehicles - BR 33003-92. A companion to this was a "Preparation and Disposal" booklet BR 33003/211.
In 1968 the booklets were replaced by a three part set for Blue Square vehicles Mechanical Transmission):
BR 33003/247 1 - General Data And Equipment
BR 33003/248 2 - Driving Instructions Including Standard Preparation and Disposal Duties
BR 33003/249 3 - Fault Finding Data and Charts
Summary
Description
Interiors
Diagrams & Driving Instructions
Numbering
Liveries
Operations
Allocations
Non-Passenger Use
Images
The preserved Wickham unit (external site).
Thanks to Andrew Middleton and Keith Gunner for additional information.