This is a pcb heated bed for a RepRap-like 3D-printer called "RobbyHobby Artlite". The printer itself was designed by a group of Russian engineers based in St. Petersburg.
The pcb was designed with the following dimensions in mind: 165mm x 185mm. The layout was made with gEDA PCB and is based on triffid_hunter's http://www.thingiverse.com/thing:11305