You may not be able to answer this (at least not on the forum) but here is my question
I assume you know who the auctioneer was and I assume at some point in time, even after the fact the auctioneer eventually became aware of the notes history..
How does this reflect on the auctioneer if he/she was in fact aware of the notes original "before" condition.
And if he/she was not aware of it, but later finds out, do they take any responsibility for their mistake?
If I was not aware of the past history (which I was not) and I purchased this note as an unc as described by the auctioneer's description I know I would be pretty disturbed by this.
The bottom line is ...it always up to the buyer to base his/her purchase on his/her own judgment and not take for granted that an auctioneer can be wrong...you would think there still should be some liability on the auctioneer....or what is the point in them describing any note that they cannot guarantee is what they say it is...
Hope this is somewhat clear to understand