Una-Fon bells

Bar-type bells, usually with a scoop-like depression in the center, with a closed-end tubular resonator behind each bar, made by J.C. Deagan. The Una-Fon is a hand-played instrument with the bells played by reiterating electromagnets fitted with hard beaters. Due to their unusual shape, resonator length and hardness of the beaters, the bells have a unique sound with a prominent harmonic clang tone. Una-fon bells, also called Unitone bells by Deagan, were used in certain early Cremona Style J orchestrions (as Unatone bells) and Wurlitzer 180 band organs (as Uniphone bells).