The film itself should be fine, but if the casings are paper, they should be replaced. If they're plastic, they could be salvaged with a bath in a solution, but they're probably better off being replaced.
Search for a UK-based archival products catalog, or a good photography equipment catalog. Either of these sources should have replacement slide casings. Alternately, a reputable photo processing center (i.e., not a quickie-mart) should be able to replace them for you.
All this is given with the caveat that I don't actually do much preservation myself. I've got some basic knowledge, but I turn to my dear friend mizarchivist (whom you met at my wedding) when I need real preservation foo.
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The film itself should be fine, but if the casings are paper, they should be replaced. If they're plastic, they could be salvaged with a bath in a solution, but they're probably better off being replaced.
Search for a UK-based archival products catalog, or a good photography equipment catalog. Either of these sources should have replacement slide casings. Alternately, a reputable photo processing center (i.e., not a quickie-mart) should be able to replace them for you.
All this is given with the caveat that I don't actually do much preservation myself. I've got some basic knowledge, but I turn to my dear friend