At the 2013 Worldwide Partner Conference, Microsoft showed off some of the Xbox One’s abandoned prototypes.

Polygon posted the pictures seen above and in our gallery online. Microsoft’s Carl Ledbetter presented the Xbox One’s assorted prototypes on the conference. When the Xbox One was in its initial creative stages, a team of 30 started sketching and crafting possible looks for the device and testing their aesthetics by placing them in living rooms.

Ledbetter said that while the Xbox One hardware saw many iterations, greater than 200 prototypes were created for the console’s controller. Ledbetter said, “We found that, when people put these of their hands, could tell the variation between a tenth of a millimeter in size,”

[Source: Polygon]