Which brand holds the Guinness World Record for the 'Most Valuable Chocolate Bar' ever sold at auction, fetching $687,500 in 2017?

The Guinness World Records has certified many impressive feats in the business world, including remarkable product achievements and marketing stunts. These commercial records showcase the extraordinary lengths companies go to for brand recognition. Test your knowledge about famous products that have earned their place in the record books! From the largest advertisements to the most expensive commercials, see if you can identify these record-breaking marketing milestones.

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Cadbury (a 100-year-old chocolate bar from Captain Robert Scott's Antarctic expedition)
Toblerone (a 10-pound solid gold replica created for their 100th anniversary)
Hershey's (the first chocolate bar carried to the summit of Mt. Everest in 1953)
Cadbury-Fry (a 126-year-old chocolate bar from Captain Shackleton's 1907 Nimrod expedition to Antarctica)