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<p>[QUOTE="Curtis, post: 24820272, member: 26430"]It’s actually not too complicated once you know what you’re looking at. It’s just a “social network diagram” (I happen to be familiar with them as a sociologist).</p><p><br /></p><p>You can make a simple one for any coin that had two or more known collectors (or yourself and one prior collector).</p><p><br /></p><p>So, here’s a Faustina that was in Edoardo Levante's collection and also in Hans von Aulock's collection:</p><p><br /></p><p>[ATTACH=full]1588848[/ATTACH]</p><p><br /></p><p>And here's a Cilician Obol that was owned by Hans von Aulock and Leo Mildenberg:</p><p><br /></p><p>[ATTACH=full]1588849[/ATTACH]</p><p><br /></p><p>Since they share Hans von Aulock in common, now I have a social network that connects all three collectors across two coins:</p><p><br /></p><p>[ATTACH=full]1588850[/ATTACH]</p><p><br /></p><p>And you just keep finding connections to build up from there. Certain collections, like Hans von Aulock's, tend to be connected to many others, suggesting he was an especially important figure in numismatic scholarship (since these are all published collections). He owned all four of the coins below, all of which also had other collectors:</p><p><br /></p><p>[ATTACH=full]1588851[/ATTACH]</p><p><br /></p><p>The hard parts are (1) finding enough coins with multiple notable prior collectors, and (2) finding ones that overlap.</p><p><br /></p><p>My biggest network now has something like 70 interconnected collections.</p><p><br /></p><p>If you research lost provenances, it’s very useful to know which collections tended to flow into one another and which ones were especially influential. (For example, something like 25% of the Levante coins came from the von Aulock Collection. So, anytime I see a Levante coin for sale, I check SNG von Aulock. A few others, too.)[/QUOTE]</p><p><br /></p>
[QUOTE="Curtis, post: 24820272, member: 26430"]It’s actually not too complicated once you know what you’re looking at. It’s just a “social network diagram” (I happen to be familiar with them as a sociologist). You can make a simple one for any coin that had two or more known collectors (or yourself and one prior collector). So, here’s a Faustina that was in Edoardo Levante's collection and also in Hans von Aulock's collection: [ATTACH=full]1588848[/ATTACH] And here's a Cilician Obol that was owned by Hans von Aulock and Leo Mildenberg: [ATTACH=full]1588849[/ATTACH] Since they share Hans von Aulock in common, now I have a social network that connects all three collectors across two coins: [ATTACH=full]1588850[/ATTACH] And you just keep finding connections to build up from there. Certain collections, like Hans von Aulock's, tend to be connected to many others, suggesting he was an especially important figure in numismatic scholarship (since these are all published collections). He owned all four of the coins below, all of which also had other collectors: [ATTACH=full]1588851[/ATTACH] The hard parts are (1) finding enough coins with multiple notable prior collectors, and (2) finding ones that overlap. My biggest network now has something like 70 interconnected collections. If you research lost provenances, it’s very useful to know which collections tended to flow into one another and which ones were especially influential. (For example, something like 25% of the Levante coins came from the von Aulock Collection. So, anytime I see a Levante coin for sale, I check SNG von Aulock. A few others, too.)[/QUOTE]
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