Looking up Item Id 167966, should show sourceType as “CREATED_BY_SPELL” along with some type of sourceId or spellId indicator linking this back to Blacksmithing.
Right now it shows “NONE” for the source type, and the spell/source Ids are not present.
edit: I just noticed that 167967 is the “real” item, a duplicated of 167966 but with the corrected data. However the item ID of 167966 is what’s returned in the auction house item list.
Is there a way to know from this data which is the “real” item entry without having to manually poke around?