This time courtesy of Getty images. Watermarked previews with a variety of vehicles, Dennis, Renault, Liberty, Commer, Thornycroft, Holt, Leyland, Peerless and others available on the following links. Not very long but well worth a look:
https://www.gettyimages.co.uk/license/mr_00102116
https://www.gettyimages.co.uk/license/496716174
https://www.gettyimages.co.uk/license/mr_00017941
https://www.gettyimages.co.uk/license/1B012266_034
https://www.gettyimages.co.uk/license/496741540
https://www.gettyimages.co.uk/license/496698040
https://www.gettyimages.co.uk/license/mr_00006584