It's a mistake to think that 'brightness' is necessarily a sign of cleaning. Polishing would cause it, but looks very unnatural, while dipping actually reduces brightness (increases LIGHTNESS, i.e. colour, but reduces lustre). A coin that has retained its BU condition might indeed look 'bright' and there are many 19th Century silver coins that have a mirror finish, almost prooflike. Peck, I have just used John's method of cleaning using Bicarbonate & Foil on some old low grade silver. Compared to dipping in a Goddard's it seems by far superior for the reasons you have stated. My general feeling is that cleaning should be avoided at all costs. However their will always be that one coin that almost begs to be cleaned. John, The retone looks really good. Just one year? Mark