Provenance Auctions

Baldwin's upcoming auctions include the Timed Sale: Mirror Dimensions running from August 21 to September 21, 2026. On September 8, 2026, Treasures of Revenue Philately will be held, followed by the Northern Collection: Space, Science and Magic on September 11, 2026, and Clandestine Operations - Inc The D.J. Croll Medal Collection & Other Properties on September 16, 2026.

Auctions antiques and collectables, including luxury watches.

Specializes in antiques, fine art, estate contents, jewelry, sculpture, collectibles, and quality furnishings.

Adam Sykes & Co. specializes in classic, collector, and competition cars, including marques like Ferrari, Shelby, and Lotus. The firm also offers quality automobilia and operates from two purpose-built showrooms.

Bird's Nest Auctions specializes in estate liquidations featuring antiques, estate jewelry, collectibles, original art, and vintage treasures. The firm handles everything from farmhouse contents to high-end home goods, aiming to give clients their weekends back.

Auctions advertising and collectibles, including framed concert posters.

Kimball M. Sterling Inc. is holding "The Gentlemen's Arsenal: System Canes, Objects of Vertu and Curiosities" auction on August 8, 2026, and the Anne Brading Estate Auction on August 29, 2026, featuring items such as a Steinway grand piano, Peggy Root landscape, and various antique furniture and decorative arts.

Olympia Auctions is holding a Dedicated Chinese and Japanese Works of Art Valuation Day on August 12, 2026.

Auctions Russian fine art, including paintings, icons, and sculptures.

Brunk Auctions is holding a Jewelry auction on September 3, 2026.

Auctions items from banks, trustees, lenders, retailers, manufacturers, liquidations, consignments, estates, vehicles, trailers, and off-highway vehicles.

Treasure Trove Auctions features a diverse range of items, including jewelry, coins, and collectibles. The house offers both live and timed auctions, providing multiple avenues for buyers to acquire unique pieces.

Bidsquare Auctions is holding auctions on August 27, 2026, and September 17, 2026.

Harris Estate Services specializes in auctions featuring coins, jewelry, silver, fine and folk art, and extraordinary collectibles. The house has also recently featured estate guitars and mid-century furniture.

Auctions feature a "Summer 2026 Oilfield Sale" with items like Super Vac Electric Vacuum Skids, Dragon Transfer Pumps, and Gorman-Rupp Centrifugal Pumps. These industrial offerings highlight a focus on heavy-duty equipment for specialized sectors.

Oahu Auctions is holding a timed bidding auction on August 26 for office furniture from the Ala Moana Center. Upcoming auctions include the contents of a restaurant in Kapolei on September 8.

Sophia's Estate Sales and Appraisals is holding a Quirky Bridgeport Sale on October 10-11 and a Studio Melange sale in November.

Auctions cars, motorbikes, commercial vehicles, plant, machinery, wine, and cherished number plates.

Auctions garden statuary, natural history, sales of the unexpected, and interiors.

Black Rock Galleries specializes in estate liquidation, featuring fine art, jewelry, antiques, and decorative arts. The company also operates a 53,000 sq ft antique and consignment showroom called Black Rock Interiors.

Auctions gold and silver coins, gold jewelry, and antique and modern items.