Birmingham Coat of Arms 1974

I have no information about these arms - can anyone help?

Each IBD County Page has or will have (where possible) the relevant Coat of Arms. This is made possible thanks to a fantastic heraldry website called the World Civic Heraldry Guide. Sometimes a description is not given due to lack of information, so if anyone could help it would be greatly appreciated. You may visit this superb site by using the link below.