The comic book marketplace
A cover of a comic book that has had a thin metallic foil hot stamped on it.
This can be a partial stamp where just the logo or a character is in foil - or the foil can be the whole of the cover. See also Chromium, Prism, Hologram Cover
Here is the Age of Ultron #1 with Gold Foil on the title and on Ultron also:
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