Only surviving complete Mighty Joe Young puppet heads to auction

Propstore will auction the only complete stop-motion gorilla puppet known to survive from Mighty Joe Young, with a pre-sale estimate of $1 million to $3 million. The artifact headlines a four-day Los Angeles sale Aug. 26-29 that features more than 1,700 lots and a combined estimate of $10 million.

Why it matters: - The Mighty Joe Young puppet is described as the only complete stop-motion animation gorilla puppet known to survive from the 1949 film. - The piece represents a rare surviving artifact from the golden age of stop-motion animation and a landmark Academy Award-winning production. - The puppet is set to make its public auction debut, giving collectors a first chance to bid on a historically important visual effects model.

What happened: - Propstore is offering the 15-inch puppet in its Summer Entertainment Memorabilia Live Auction in Los Angeles on Aug. 26-29, 2026. - The puppet carries a pre-sale estimate of $1 million to $3 million. - The four-day auction includes more than 1,700 lots of film and television props, costumes, production material, autographed memorabilia and other entertainment artifacts. - The total pre-sale estimate for the auction is $10 million.

The details: - Marcel Delgado built the puppet under the direction of visual effects pioneer Willis O'Brien. - The model retains most of its original latex skin, fur covering and internal articulated armature. - X-ray examination confirmed the survival of the original mechanical skeleton. - The puppet had three known owners. - Mighty Joe Young co-producer and co-director Ernest B. Schoedsack owned it first. - Visual effects artist and puppeteer Lyle Conway later held it in his private collection for about 50 years. - Registration is open, and the full catalog is available at the full catalog. - Images are available through the event image gallery.

Between the lines: - Stop-motion puppets from early filmmaking rarely survive intact because they were working tools handled thousands of times during production. - The puppet’s documented provenance and preserved original materials make it more significant than a typical movie collectible. - Mighty Joe Young won the Academy Award for Best Special Effects in 1949 and helped connect Willis O'Brien’s work with Ray Harryhausen’s later career. - Propstore is positioning the puppet among the most important stop-motion artifacts ever brought to public auction.

What's next: - Day 1 of the auction runs Aug. 26 at 9:30 a.m. PDT, with in-room bidding at the Petersen Automotive Museum plus online, absentee and telephone bidding. - Days 2-4 run Aug. 27-29 at 9:00 a.m. PDT, with online, absentee and telephone bidding. - Collectors can register now for the sale ahead of the auction window.

The bottom line: - A one-of-a-kind movie relic with rare preservation, strong provenance and major film history behind it is about to test the market.