The Paul S MORY SR COLLECTION

Can anyone tell me when this auction took place and which auction company held it. I picked up a very nice $20 DOLLAR 1893 CC AT THE DALTON SHOW YESTERDAY . Any help would be appreciated and thanks in advance and no this coin is not for sale at this time
This coin is all there and totally unmolested.

ed rodrigues
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Found him listed here.
I'm assuming this is the "Sr.".