I'll take "questions we'll never know the answers to" for $500, Alex.
Last year on the last day of Chicagopex (Nov. 20, 2022) I purchased a voluminous U.S. proprietary stamp (Scott #RB series) collection. What I didn't know at the time was that it was a collection that had been sold at Kelleher less than 2 months previously (October 1). The lot hadn't originally been on my radar because it was well beyond my means, even had I stretched and gone into debt for it.
It was lot #175 in Kelleher sale #776 and sold for $15,000 + $3,000 BP = $18,000. Listing and complete PDFs of the collection as sold can be found here:
https://stampauctionnetwork.com/V/v77635.cfmNow comparing Kelleher's PDFs with the collection when I acquired it, it really makes me wonder what the thought process was. From what I can tell, the person (collector or dealer) must REALLY have been in love with the 1st issue proprietary high values, as only 5 stamps were removed from the collection before it came to me: RB8a, RB9a, RB8b (x2), and RB10a.
RB8a and RB8b are common stamps. The RB9a is a nice example, although those can be found without too much difficulty. The "big kahuna" is RB10a, cataloguing $11,000. But that too is not IMO a "rare" stamp. Scarce, yes, but I've seen plenty of them come up at auction, and seen at least a half dozen at Chicagopex in the last decade. You can get a nice looking example for $4,000-8,000.
But when I do the math, the previous owner paid an (IMO) high amount for those 5 stamps. Subtracting what I paid for the collection and the commission to the dealer that I acquired the collection, it means they paid almost $13,000 for those 5 stamps. No bargain IMO.
Based upon the timing, I'm just assuming it was a "pull a few that I want and flip the rest fast" scenario; either cost was no object for the 5 stamps in question, or I suppose there could have been health/financial issues in play.
The irony is that the most interesting item in the entire collection and a major consideration in my deciding to tap into the credit card to buy the collection, was a document in a special pocket in the front cover, never shown in the Kelleher PDFs.
I'd love to know the real story...