This power supply has a metal frame with exposed electronics includig a large transformer, fans, heat sinks, and circuit board racks. At the back there is a high voltage cover with lightning bolt indicators. There is a hinged angle iron on the right edge. At the front there is a control panel with a selector switch: 0, -12v, +12v, +5v.
Silver sticker at top back edge
Embossed on name at top back edge
Handwritten on little white paper label at top back edge
On sticker with what looks like seimens logo on it at top back edge