These are vintage dispatcher's sets and may include a headset earpiece. Please contact us for a quote as each one is unique. Price depends on condition of case, cords and mechanism. These sets generally require a speech network or some external circuitry. MRCS can match the equipment in the photo of your prototype's dispatcher or operator office, send us a photo and ask for a quote!
Hre's an Application Note on how tro wire and install Candlestick phones