Model C correct front break shoes

What are the correct front break shoes for a model c the ones casa lambretta sent me are the wrong size the ones I have on at the moment that need replacing the numbrea stamped on the current ones are 7 R 1021 and on the other side FPB A 1439/1 and are bigger than the ones casa sent me I need front break shoes dose anyone sell the correct ones the shoes on the right are the originals the new ones are on left


