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Author Message   Hanskerensky Tinkerer Username: Hanskerensky Post Number: 236 Registered: 05-2009 Rating: N/A Votes: 0 Posted on Sunday, January 13, 2013 - 02:52 pm:    Let's hope it is not WD40 but another oil. I have cleaned out several Prontor shutters which did experience an oil-bath during their lifetime and all could be put to work again. It involves however a complete stripdown of the shutter.