Is there any way to hunt down buyers on the LiveAuctioneer platform, like calling the auctionhouse directly or similar?
If so i just found this 2018 completed auction for a 1922 Bathe´s catalogue.
https://www.liveauctioneers.com/item/64985508_1922-bathe-manufacturing-co-model-engines-boilers-boats
If nothing else, the 5 pics gives you a bit more ephemera for the database, than your single page there