soap) over' the whole surface of the glass polishing it until it is bright again. The preparations ' Olasolin ' and ' Oculitstr' offered for the same purpose at high prices are nothing else than pure potash soapDie Werkstatt, scientific american, 1900-12-22
soap) over' the whole surface of the glass polishing it until it is bright again. The preparations ' Olasolin ' and ' Oculitstr' offered for the same purpose at high prices are nothing else than pure potash soapDie Werkstatt, scientific american, 1900-12-22
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