Which major publishing house features a dolphin wrapped around an anchor in its historic logo?

In the publishing world, logos aren't just branding—they're cultural symbols that represent literary traditions and intellectual heritage. The most recognizable publishing house logos often become as iconic as the books they print. This trivia challenges your knowledge of the visual identities behind the books that have shaped literature and thought. Can you match these distinctive logos to their publishing houses?

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Penguin Random House
Doubleday
Aldine Press (now part of Penguin Classics)
Oxford University Press