Things being what they are, it turns out the instrument panel needed to be pulled to start all the work I want to perform. Lee was most helpful in providing guidance. Some rust needs to be cleaned up as you can see so will probably use por-15 paste.
The brake master has 9M 23 1405995 on the end plate and is connected to a Bonaldi booster. As best I can tell this master cylinder was used on a number of older Ferrari's and appears to have a rebuild kit number 95696966. Anyone familiar with this brake master?