Which publishing house features a dolphin wrapped around an anchor as its historic brand mascot, a symbol dating back to the 16th century?

Publishing houses often create distinctive brand identities through mascots or logos that become synonymous with literary quality and tradition. These visual symbols help readers instantly recognize a publisher's works and often carry fascinating histories of their own. Test your knowledge of these iconic literary brand ambassadors that have graced book spines and covers for generations!

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Penguin Random House
Aldine Press (now part of Doubleday)
Oxford University Press
Houghton Mifflin Harcourt