An archive of weird and wacky innovations has been unearthed by an amateur historian as he trawled through a collection of images spanning the last 100 years. Businessman Chris Hodge, from Chislehurst, south east London, has collected more than 250,000 images and is having them all digitally scanned and archived. Above, an experimental flying bicycle.
An experimental gyrocopter
...and a Land Rover hovercraft