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<p>[QUOTE=&quot;Tejas, post: 3989154, member: 84905&quot;]That would be useful to know. My guess is that they don&#039;t apply anything routinely. This does, however, not mean that a conservator wouldn&#039;t apply wax or some other material in certain cases. In the case of the Swiss coin hoard the 4000 antoniniani were cleaned using scalpels, maybe this process called for the application of some kind of sealant. </p><p><br /></p><p><a href="https://www.ag.ch/de/bks/kultur/archaeologie_denkmalpflege/archaeologie/archaeologische_sammlung/funde_und_fundgeschichten/funde_fundgeschichten/detailseiten_64450.jsp" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.ag.ch/de/bks/kultur/archaeologie_denkmalpflege/archaeologie/archaeologische_sammlung/funde_und_fundgeschichten/funde_fundgeschichten/detailseiten_64450.jsp" rel="nofollow">https://www.ag.ch/de/bks/kultur/archaeologie_denkmalpflege/archaeologie/archaeologische_sammlung/funde_und_fundgeschichten/funde_fundgeschichten/detailseiten_64450.jsp</a></p><p><br /></p><p>If I look at bronze coins in major auctions, I often wonder if some kind of oil or wax has already been applied, perhaps to improve the eye-appeal in the catalog. I may be completely wrong, but look for example at this group of sesterti in the upcoming CNG sale:</p><p><br /></p><p><a href="https://auctions.cngcoins.com/auctions/4-8YHV9/electronic-auction-460?categories=4-8YJO9&amp;limit=48" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://auctions.cngcoins.com/auctions/4-8YHV9/electronic-auction-460?categories=4-8YJO9&amp;limit=48" rel="nofollow">https://auctions.cngcoins.com/auctions/4-8YHV9/electronic-auction-460?categories=4-8YJO9&amp;limit=48</a>[/QUOTE]</p><p><br /></p>

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