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<p>[QUOTE="ancient coin hunter, post: 3583465, member: 87200"]I don't have any experience cleaning silver coins but I believe some folks do it with lemon juice. On the other hand with late roman bronze I have done quite a bit. Generally you can get some results by soaking the coins in distilled water for 48 hours and then scrubbing with a toothbrush to remove some of the dirt.</p><p><br /></p><p>If that does not yield results than soak the coins in olive oil for some time (1 month at least - some folks keep them in olive oil for a year or two) then take out the toothbrush again. I also have used a dental pick to remove encrustations, doing so very carefully so as not to scratch the surface. </p><p><br /></p><p>Other methods include electrolysis (which I am not experienced with) and liquid descaler. I tried liquid descaler on one lot of 50 coins and it destroyed virtually all of them (so I would not recommend it). </p><p><br /></p><p>Anyway, it can be a fun process and you maybe discover some interesting coins. Classic finds include Constantinian bronzes such as the GLORIA EXERCITVS types, FEL TEMP REPARATIO types, SOLI INVICTO types, GLORIA ROMANORVM types, etc.</p><p>ranging from emperors like Constantine, through his sons (Crispus, Constantine II, Constans, and Constantius II), Julian, Jovian, Gratian, Valens, Theodosius, Arcadius, Honorius, and others.[/QUOTE]</p><p><br /></p>
[QUOTE="ancient coin hunter, post: 3583465, member: 87200"]I don't have any experience cleaning silver coins but I believe some folks do it with lemon juice. On the other hand with late roman bronze I have done quite a bit. Generally you can get some results by soaking the coins in distilled water for 48 hours and then scrubbing with a toothbrush to remove some of the dirt. If that does not yield results than soak the coins in olive oil for some time (1 month at least - some folks keep them in olive oil for a year or two) then take out the toothbrush again. I also have used a dental pick to remove encrustations, doing so very carefully so as not to scratch the surface. Other methods include electrolysis (which I am not experienced with) and liquid descaler. I tried liquid descaler on one lot of 50 coins and it destroyed virtually all of them (so I would not recommend it). Anyway, it can be a fun process and you maybe discover some interesting coins. Classic finds include Constantinian bronzes such as the GLORIA EXERCITVS types, FEL TEMP REPARATIO types, SOLI INVICTO types, GLORIA ROMANORVM types, etc. ranging from emperors like Constantine, through his sons (Crispus, Constantine II, Constans, and Constantius II), Julian, Jovian, Gratian, Valens, Theodosius, Arcadius, Honorius, and others.[/QUOTE]
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