An original Siebe Gorman Diver’s Surface Intercom Unit, model AP32189, manufactured by Siebe Gorman & Co. Ltd., Chessington,Surrey, England. Dating from the mid-20th century, this rugged communication unit was designed for professional hard-hat diving operations, enabling clear voice communication between the surface crew and up to two divers during commercial, naval and salvage work.

Housed in its original heavy-duty steel case, the intercom retains its original loudspeaker, control switches, connectors and internal components, together with the embossed exterior identification. The intercom is in great condition despite honest wear and light corrosion consistent with years of service