1) Can a vintage brush be effectively sanitized without killing it?

2) The brush appears to be horse hair. All the bristles were bent the same way, is this a problem?

3) Some of the hairs were broken off and they appear to be brittle, is this a dead brush or can it be brought back?

Source: http://badgerandblade.com/vb/showthread.php/345947-Found-some-vintage-brushes-but-have-some-concerns?goto=newpost

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