Physical description

Small rectangle box (cigar box), with wooden roll, covered in copper wire,brass bar, with wooden peg which meets copper wire on roll, 2 metal pegs on outside of box, which could attach to power leads
(could be crystal set) or something to do with early morse code transmission. There is a lever that can be disconnected from an electrical force, that could produce a morse code

Inscriptions & markings

"EARTH" & "ARIEL" hand carved on one end
"PHONES" (hard to decifier) on other end