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50 Years of RotographicCoinpublications.com A Rotographic Imprint. Price guide reference book publishers since 1959. Lots of books on coins, banknotes and medals. Please visit and like Coin Publications on Facebook for offers and updates.

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Showing content with the highest reputation on 08/30/2024 in all areas

  1. 1 point
    From Goddards own site: How Silver Dip Works: 1. Chemical Reaction: As tarnished silver jewellery is immersed in a silver dip solution, a chemical reaction occurs. Thiourea or potassium thiocyanate in the solution reacts with the silver sulphide, which is broken down into one component, silver, and one component, sulphur. 2. Dissolving tarnish: The silver sulphide dissolves into the solution as the chemical reaction proceeds, leaving behind a transparent, untarnished silver sheet. During this process, the tarnishing process is reversed, revealing the shiny silver surface underneath. No mention of 'etching'?
  2. 1 point
    Hedychium Gardnerianum- amazing perfume...two months earlier than usual...strange year......





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