Burtons, Jacksons the Tailor, Claude Alexander (The Window to Watch), The Co-op etc all had factories in the midlands making up suits that were supposedly made to measure. Every working man had a suit certainly since Victorian times. I don't know who made the Thirty Bob Suit and when it was originally advertised. There were always crazes on suit designs, three piece, double breasted baggy skinny stove pipe flared trousers.
You went to a shop where you were measured, shown some fabric samples and a style book from which you picked lapel size , vent(s) , pockets: slanted, straight, patched.. How many ticket pocketsetc. The concept of a decent looking, properly fitting suit descended into farce towards the end of the sixties and ended up in big vents, wide lapels, high waisted trousers that would have put Simon Cowell to shame , three ticket pockets a side, half a dozen buttons on the cuffs.
I had mine made bespoke. I've still got two of them.