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<p>[QUOTE="Sulla80, post: 4966733, member: 99456"]I often ask for provenance and rarely get anything other than words like "from a Swiss family collection" which doesn't do much for me.</p><p><br /></p><p>I've had the most success with <a href="https://www.acsearch.info" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.acsearch.info" rel="nofollow">ACSearch</a> finding previous auction listing for coins that I own - here you can go back a few years, but usually the provenance is limited to another auction house. Researching a coin I've also had some luck finding coins that are highlighted in articles or old catalogs. Here's a nice example: <a href="https://www.sullacoins.com/post/ae-coin-from-ekkarra-achaea-phthiotis" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.sullacoins.com/post/ae-coin-from-ekkarra-achaea-phthiotis" rel="nofollow">AE Coin from Ekkarra, Achaea Phthiotis</a></p><p> </p><p>There's not much magic - as much as image search may eventually prove more useful for provenance hunting, I personally have had limited success with <a href="Http://ex-numis.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="Http://ex-numis.com" rel="nofollow">Ex-Numis</a> and ACSearch image search. I think there are a few hurdles still to overcome in content (building better databases) and search technology (better algorithms for recognizing die matches and exact matches).</p><p><br /></p><p>My favorite example of "re-discovered provenance" is this one. The CNG source was listed with the coin, but surprisingly no mention of the Shore provenance:</p><p>[ATTACH=full]1193774[/ATTACH]</p><p><b>Phraatakes </b>2BC-4AD AR Tetradrachm 11.38g</p><p><b>Obv:</b> Bare-headed bust left without royal wart, with medium pointed beard, wearing diadem, earring visible</p><p><b>Rev:</b> King seated right on throne, Tyche standing before him, giving him diadem and holding cornucopia, standard legend, below Tyche's arm IT, above Tyche's arm, IT, ΓOPM(?)</p><p><b>Ref: </b>Shore 312 (this coin) <a href="https://issuu.com/cngcoins/docs/cng_36/36" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://issuu.com/cngcoins/docs/cng_36/36" rel="nofollow">CNG Auction Catalog </a></p><p><b>Note: </b>my notes on this coin are here: "<a href="https://www.sullacoins.com/post/coins-of-parthian-king-phraates-iv" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.sullacoins.com/post/coins-of-parthian-king-phraates-iv" rel="nofollow">Parthian King Phraates IV and Son</a>"[/QUOTE]</p><p><br /></p>
[QUOTE="Sulla80, post: 4966733, member: 99456"]I often ask for provenance and rarely get anything other than words like "from a Swiss family collection" which doesn't do much for me. I've had the most success with [URL='https://www.acsearch.info']ACSearch[/URL] finding previous auction listing for coins that I own - here you can go back a few years, but usually the provenance is limited to another auction house. Researching a coin I've also had some luck finding coins that are highlighted in articles or old catalogs. Here's a nice example: [URL='https://www.sullacoins.com/post/ae-coin-from-ekkarra-achaea-phthiotis']AE Coin from Ekkarra, Achaea Phthiotis[/URL] There's not much magic - as much as image search may eventually prove more useful for provenance hunting, I personally have had limited success with [URL='Http://ex-numis.com']Ex-Numis[/URL] and ACSearch image search. I think there are a few hurdles still to overcome in content (building better databases) and search technology (better algorithms for recognizing die matches and exact matches). My favorite example of "re-discovered provenance" is this one. The CNG source was listed with the coin, but surprisingly no mention of the Shore provenance: [ATTACH=full]1193774[/ATTACH] [B]Phraatakes [/B]2BC-4AD AR Tetradrachm 11.38g [B]Obv:[/B] Bare-headed bust left without royal wart, with medium pointed beard, wearing diadem, earring visible [B]Rev:[/B] King seated right on throne, Tyche standing before him, giving him diadem and holding cornucopia, standard legend, below Tyche's arm IT, above Tyche's arm, IT, ΓOPM(?) [B]Ref: [/B]Shore 312 (this coin) [URL='https://issuu.com/cngcoins/docs/cng_36/36']CNG Auction Catalog [/URL] [B]Note: [/B]my notes on this coin are here: "[URL='https://www.sullacoins.com/post/coins-of-parthian-king-phraates-iv']Parthian King Phraates IV and Son[/URL]"[/QUOTE]
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