On occasions I get asked to produce artwork to create accurate replica blinds for historic London Transport buses. These printed roller blinds are necessarily slightly wider than the rubber surrounded glass windows through which they are seen. Back in 2019 I decided to set down on paper what the various measurements were for the RT class, as different vehicle types within the class required different sizes. London Transport used a series of letter, and double-letter codes for each variant and many existed before RTs and perpetuated after them; I have included them.
I have provided a downloadable PDF of these specifications and am happy for them to be used in the pursuit of accuracy, but please ask me first and respect the copyright of my drawings.