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I found this while breaking a ceiling of a house (uk) built in 1920 at work, not sure if this asbestos or not its looks like concrete but it hairs some brown hair like material mixed in? http://i57.tinypic.com/2mmcth.jpg http://i59.tinypic.com/23sghu8.jpg http://i57.tinypic.com/2dul5pe.jpg...