Here are 4 each of the corner angle brackets right hand and left hand, parts 154a and 154b. They are in the very short lived iridescent finish sent out from the Binns Road factory in 1979 i.e. just before it closed.
Buyer to pay post which will be £1.95 in the UK, £4.95 in Europe and £8.95 worldwide. Payment by cheque, direct credit to account or via Paypal.