Model have only quad polygons. No poles with more than 5 edges. One key have 2423 poles and 2423 vertex. Create in real-world scale, milimeters unit system. Approximate size of one key 95 x 30 x 7 mm. All objects and materials have suitable names. Object are contained in a separate layer 'Old Keys'.
Scene have 6 PNG textures 4096x4096. For envoronment used 3 VrayLight and HDRI map for reflection (include in archive).