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We tend to make space in our houses by clearing up things that we might consider not valuable anymore, like old books, magazines, pictures, etc. However, you might have been throwing hundreds of pounds away, as they could be worth more than you think!

A new study conducted by packaging supplier Rajapack and Wayne Colquhoun from BBC One’s Antique Roadshow have predicted the value of items you might have gathering dust in your attic.

Top 10 most profitable items in 50 years’ time

…but what else makes the big bucks? Wayne is careful to clarify that ‘value’ means different things for different people: “One person’s junk is another’s treasure is as true today as it’s ever been.” Sometimes an item worth its weight in gold could be worth mere pennies to another. But if you must clear out your attic specifically for cash, here’s how to look for the big bucks: “Dig a little deeper for signed copies, early versions of anything, prototypes or the unpublished. Rarity and quality combined is the combination for cash.” Indeed all the books featured in the top ten list depended on signatures to make them desirable: “Signatures are always so important. They signal that an actual person signed the item. It’s always worth checking the signature is genuine and not a fake.” What else can cause a collector’s item to soar? From David Bowie to Harper Lee, Wayne tells us that, “Sadly, death is always a point of recognition for an artist or an author. It seems to be a point of recollection of a series of achievements. An author’s signed copy of their book tends to rise in value overnight once they have passed.”