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Mystery of the 100-year-old rubber blocks that keep washing up on shores in Britain and northern Europe | Daily Mail Online
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The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post
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Mystery of the 100-year-old rubber blocks that keep washing up on shores in Britain and northern Europe | Daily Mail Online
![The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post](https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/GMRTWCHLJM2EXBYXCDWGZLPXVE.jpg)
The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post
![The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post](https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/TP43Q42QQYZGVEQODWTC23JX44.jpg)
The mystery of the inscribed rubber-like blocks that keep washing up on to Europe's beaches - The Washington Post
![Mystery of the 100-year-old rubber blocks that keep washing up on shores in Britain and northern Europe | Daily Mail Online Mystery of the 100-year-old rubber blocks that keep washing up on shores in Britain and northern Europe | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/04/25/article-2314083-197750AE000005DC-187_634x714.jpg)