Handwritten on a sticker on one of the intergrated circuits.
overall: 3/4 in x 10 in x 5 1/2 in
The object has a yellowish-green board with several integrated circuits, capacitors, switches, resistors, and transistors on one side. On the opposite side the solder is visible through the layers of the board. There are also three screws, which hold brackets in place on the component side.