Those kinds of descriptions can go either way. I would drive for a set of sewing machines but stay closer to home with the material that auctioneers get. I was at one auction with over 100 boxes of fabric. Some were huge totes and some the storage totes in cardboard. The auctioneer did not like women's things and went so fast that many of us were left in the dark.
however, at the same auction I got an enormouse collection of unused patterns for around $11 and eventually sold most for over $500. I could see that there were some older Barbie ones so took a chance.
it is true that many estate auctions contain a lot of much older material so I never have high hopes. In the previous auction, I had gone for the yarn (another story) and found the fabric and patterns as a bonus.