Morse Code Machine On Wood Base SOS

Neat! Dot, Dash, Dot! Morse Code Machine -- probably needs some wires around the back knobs; there are wires on the base; and missing one conical metal foot. No idea, but it certainly looks "official," as if it might have been in real commercial or military use way back when it was developed. Very dusty, and rust here and there, but a fascinating item. Measures 7" x 4-1/2". Appears to be in great condition. Age unknown. $10 US Shipping.