Swedish Military Field Telephone Tfn m/37 – WWII Era

For sale is a rare and authentic Swedish military field telephone, likely a Telefonapparat m/37 (Tfn m/37), a vital communication tool used by the Swedish armed forces during the late 1930s through the 1950s. This piece is a fantastic addition for collectors of Scandinavian military antiques, WWII-era equipment, or vintage communication devices.

Historical Significance:
Sweden’s neutrality during World War II required a robust defense system, and field phones like the Tfn m/37 were essential for reliable communication across the country’s rugged terrain. This telephone would have been used to coordinate troop movements, relay orders, and maintain contact between units in the field. The Swedish marking “FIENDEN LYSSNAR” (“The enemy is listening”) on the casing serves as a stark reminder of the era’s tension, warning soldiers to be cautious of intercepted communications.

Condition and Features:

• Rugged Design: Housed in a sturdy metal casing with a military gray finish, this field phone is built to withstand harsh conditions. It shows authentic signs of field use, including scratches, faded labels, and some tape residue, adding to its historical character.
• Complete with Accessories: Includes the original black handset with a coiled cord, featuring a push-to-talk (PTT) button, and a leather carrying strap for portability. The hand crank for the magneto system is also present, allowing the phone to generate its own signal to ring another unit.
• Control Panel: The front panel features dials labeled “La,” “Lb,” and other settings, used to select communication lines or adjust volume. The layout is simple and functional, designed for ease of use in the field.
• Markings: The “FIENDEN LYSSNAR” label is prominently stamped on the casing, and the handset bears a faint Swedish military marking, further authenticating its origin.

Technical Details:

• Likely manufactured by L.M. Ericsson, a leading Swedish telecommunications company that supplied much of the Swedish military’s communication equipment during this period.
• Operates on a magneto system, requiring no external power—just crank the handle to generate a signal and connect via wired lines.

Collector’s Appeal:
This Swedish field phone is a rare find compared to more common American, British, or German equivalents like the U.S. EE-8 or German FF33. Its well-preserved condition, complete with original components, makes it a standout piece for any collection focused on Scandinavian military history, WWII-era technology, or vintage telecommunications. Whether displayed as a historical artifact or used as a functional piece for reenactments, this Tfn m/37 is sure to impress.

Note: Sold as-is, as a collectible item. Functionality has not been tested, but all components appear intact and original.

Don’t miss this opportunity to own a piece of Swedish military history! Contact us with any questions or for additional photos.

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