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The 15 most valuable old toys that you might have in your attic (but probably don’t)

Those old toys you still keep in storage might could be worth a nice chunk of change. It may just be a matter of remembering where to look.

Nordic sports-tech company Playfinity has partnered with online marketplace Catawiki for a nationwide treasure hunt. The companies say they want to "encourage Americans to explore their attics and garages in search of rare and valuable toys that may have been forgotten over the years."

Some such items could be worth millions but "it's not just about the potential financial value," the companies said in a news release on Monday. "It's also about celebrating the enduring virtues of traditional toys that have paved the way for a new era of gaming."

There's an increasing trend among consumers, particularly millennials, "being drawn to the cultural nostalgia of the toys that defined their childhood," Catawiki's in-house toy expert, Toby Wickwire, said in a statement."There’s also the investment element," Wickwire said. "Some old toys in mint condition can go for a pretty penny, especially when they are in great condition, they were very expensive when new and didn’t sell well, or have gained in popularity since they were made."

Wickwire compiled a list of the top 15 most valuable toys from the last century if you want to check those old boxes. Here they are:

1938 Action Comics #1

Action Comics #1, first published in 1938, "is a highly sought rarity," Wickwire said, adding that the comic included Superman’s hero debut and was an immediate hit.

This particular comic book was sold in auction last year for $3.18 million, rocketing to a level rarely reached by any comic book, Wickwire said.

1985 Nintendo Super Mario Bros.

A never-opened copy of the game Super Mario Bros. was sold to anonymous buyer for $2 million in 2021, making it the “most expensive video game ever sold," Wickwire wrote.

1999 Pokémon card Charizard first edition shadowless

A 1999 Pokémon base set first edition Holo Charizard set the record for the highest ever paid for a base Pokémon Charizard trading card when it was sold at auction for $420,000 in 2022 at the PWCC auction, the largest trading card marketplace in the world, Wickwire wrote.

It also set an all-time record for the third-highest price paid in a public marketplace for any Pokémon trading card, according to Wickwire.

1934 Lionel standard gauge train set with 400E locomotive

The 1934 Lionel standard gauge train set with 400E locomotive was created by model train company Lionel, which has manufactured model trains and model railroading accessories since 1900, Wickwire wrote.