A small 2 pin plug made from wood.
The body is a single piece of wood, with a fibre disc and two brass pins.
The wood body has two holes drilled for the pins, which merge into a single hole for the wires to exit on the other side.
This plug still has the remains of some wiring attached - rubber insulated with a red cotton covering.
The wires are tinned copper, hence the silver appearance.
This video features this and several other wooden plugs.