Know your industry to know which term to use.
Components of a Masthead
Consider the masthead a standing element in your publication.
Be consistent in placement.

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Because it’s not an article, a smaller font is common.
The masthead may be framed or set inside a tinted box.

Both nameplate and masthead are on page 1 of this newsletter.MCLNotes from Manchester Library CC BY-SA 2.0 license