It almost seems like a lifetime ago now, but around 2013-14, Nokia was cranking out new devices at a relentless pace, targeting almost every niche and price point it could. But there were yet more phones and tablets that were never officially released, as Nokia - and Microsoft, which eventually acquired its devices and services business - came to terms with the reality of low demand for these devices, amid spiraling costs for their development.
Microsoft kept the faith for as long as it could, continuing to develop a wide range of Lumia handsets - but last year, it cut its losses, and massively scaled back its mobile business, cancelling several devices that were almost market-ready.
Today, a photo has appeared online showing a range of Microsoft and Nokia devices, which includes some that never went on sale. The photo was published on Baidu by @nokibar, who has previously revealed images of the cancelled Lumia 850, as well as an accurate render of the Lumia 650 before it was unveiled.
The most interesting device there is the big green one. It's the rarely-seen Lumia 2020 tablet, which was first rumored at the end of 2013.
Conceived as a smaller sibling to the 10.1-inch Lumia 2520, which was unveiled a a few weeks earlier, the 2020 would have been another Windows RT tablet, with an 8.3-inch display, Snapdragon 800 processor, 2GB of RAM, and 4G LTE support. It was originally expected to be announced at Mobile World Congress 2014 - but of course, it never made an official appearance.
This isn't the first time the Lumia 2020 has been caught on camera; another photo appeared last year (above) showing the tablet's unusual rear camera arrangement, mounted in the center of the device. That earlier image also indicated that the camera would feature ZEISS optics and PureView enhancements.
However, the image published today is the first to show the Lumia 2020 in green, which supports the notion that the device was originally destined to launch in 2014. Green, orange and yellow were the colors that Nokia chose for its product range in that year, which included the likes of the Lumia 630/635, 730/735 and 830.
You might spot a few familiar devices that went on sale among those in today's photo, including the Nokia Lumia 800, 830, 930, 1020, 1520, and Microsoft's latest flagship, the Lumia 950 XL.
But you may also notice one or two devices that were binned before their launch, such as the Lumia 850 ('Honjo') and, apparently, a prototype of the Nokia XL 2 - a potential successor to the company's ill-fated range of low-end Android devices.