You will discover six meanings outlined in OED's entry for your noun masthead, two of which can be labelled obsolete. See ‘Indicating & use’ for definitions, utilization, and quotation evidence. At the best of your section, we see the scaled-down nameplate Model, followed by a list of essential team users. https://sparedirectory.com/listings203379/helping-the-others-realize-the-advantages-of-masthead