What document transfers ownership of auctioned items to the buyer?

A bill of sale is the correct document that transfers ownership of auctioned items to the buyer. This legal document serves as proof of purchase, detailing the transaction between the seller (in this case, the auctioneer acting on behalf of the seller) and the buyer. It typically includes vital information such as the description of the item sold, the sale price, and the names of both the buyer and the seller. Once the bill of sale is executed, it signifies that ownership has officially passed from the seller to the buyer, making it an essential component of the auction process.

The other options may serve various purposes but do not specifically complete the transfer of ownership in the same manner. For instance, a contract of sale outlines the terms and conditions of the purchase agreement but is often broader than just the transaction of a single item at auction. An auctioneer's receipt serves as an acknowledgment of payment made and may detail the items purchased; however, it does not constitute a formal transfer of ownership like a bill of sale does. An ownership certificate, while it may indicate ownership in some contexts, is not a standard document used in auction transactions to signify the transfer of ownership and may not apply to all goods auctioned.