[Brewster]

Amongst other companies, I'm looking to trace details of commercial vehicle makes and models once owned by the George Shaw (Brewery) Co., Ltd., Leigh, Lancashire, pre 1932 (i.e. before the company became part of the Walker/Cain group). Also trying to trace details regarding their choice of livery.

What information did DVLA (or whatever it was known as then) keep on record and is there an archive which we can access??

Are there any other ways to fruitfully search for this information?

Example vehicle image attached.