I unfortunately lost my old WotLK client that had an auctioneer with a database of scans that went back almost weekly to the summer of 2016. I'm wondering if anyone would be so generous to share (here or through a PM) their database files - alliance would be preferred. If the scans start after January 1st (date of the gold squish) you'd be a saint!
In case you're wondering the files will be found in WTF/AccountName/SavedVariables/Auc-...