This rugged, vintage field telephone by Intertronic is housed in a heavy-duty olive-drab metal carrying case designed for durability and harsh operational environments. Built for versatile field communication, these units historically served military, railway, and industrial personnel, featuring an integrated hand-crank magneto generator on the side to send ringing signals across point-to-point field wire without needing centralized switchboard power. Inside the hinged lid, the original schematic diagram remains intact, labeled "Portable Magneto/Automatic B. Telephone Type P.C. PORT.1." along with a original guarantee label.

The unit features a clear rotary dial with central Intertronic branding, an Auto CB / Mag / Tone Call toggle switch, binding posts for field wiring, and a heavy-duty handset attached via a coiled black cord. Showing authentic operational wear, paint drips, and patina on the exterior metal casing, this piece serves as a striking display item for collectors of military militaria, industrial artifacts, or telecommunications history.