If you've kept hold of your vintage mobile phones, JustCollecting's new report could make exciting reading.
Top of the company's vintage mobile phone price index is the Mobira Senator (1982), widely regarded as one of the first proper mobile phones.
You can expect to pick one up for around $1,500.
The Motorola DynaTAC 8000X (1983) - the iconic first 'brick' - is also a hot prospect, with a top value of $650.
A JustCollecting spokesperson said: "Retro is in - and the 'brick'-type phones of the 80s have bucket-loads of it, so much so that you can even buy modern-day working reproductions. The originals are really rare because only high-flying City types could afford one back then.
"That rarity - and their desirability today - makes them valuable."
Phones from the 1990s and 2000s are also well represented - did you know the Nokia 1011 (1992) could make you $140? Or that the Motorola Razer V3 (2004) is worth up to $80?
The spokesperson explained: "With mobiles from the late 90s onwards, it's nostalgia driving the market...
"Most phones from the late 90s onwards were produced in huge numbers, so prices are going to remain modest. Those in top condition, with their original accessories and packaging, come at a premium."
Looks like now's the time to have a dig through your drawers.
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