In an auction there is a person doing the auction chant (auctioneer) and another person recording the results : who won and for how much.
What is that second person called?
That is the auctions
The person employed by the principal auctioneer or auction firm to record what is sold, to whom and for what price.
Here's a more complete
1) Records amounts of final bids for merchandise at auction sales, and receives money from final bidders at auction: Locates lot and item number of article up for bidding on record sheet.
2) Listens to amount of bids called for by AUCTIONEER and records final amount bid for article.
3) Receives deposit money or full payment from final bidders.