Which famous publishing house's logo features a dolphin wrapped around an anchor, a symbol dating back to the 16th century?

Publishing houses have some of the most recognizable and meaningful logos in the business world, often reflecting their literary heritage and brand values. These visual identities have become iconic symbols in the world of literature and arts. Test your knowledge of these literary corporate emblems that grace the spines of millions of books worldwide.

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