In the early 1950s, most telephones were bulky, two-piece devices that sat heavily on a desk. Swedish company L.M. Ericsson changed that entirely with the Ericofon — the lightest one-piece rotary dial telephone of its time. Instead of looking like a phone, it resembled a modernist sculpture. The rotary dial was hidden on the bottom of the base, and hanging up was as easy as setting the phone back down on a table. Today, the Ericofon holds a permanent place in the Museum of Modern Art collection in New York City.
The design team behind the Ericofon was made up of three Swedes: Gösta Thames, Ralph Lysell, and Hugo Blomberg. They developed the concept in the late 1940s, and full production launched in 1954. In Sweden, the phone quickly earned the nickname “cobra telephone” because its curved shape resembles a coiled snake rising up from a surface. The name stuck, and the cobra telephone identity became a key part of how the Ericofon was marketed across Europe.
Early models of the Ericofon were sold exclusively to institutions — hospitals, offices, and similar organizations — before becoming available to general consumers. European and Australian consumer production began in 1956. The phone came in two distinct versions. The older version was slightly taller, with the earpiece positioned at a 90-degree angle to the base. The newer version featured a shorter handle and an angled earpiece. The cases also differed in how they were made: the old case was molded in two separate pieces, while the new case was molded as a single piece.
The Ericofon’s entry into the American market came with a notable restriction. The Bell System prohibited third-party equipment on its network, so the Ericofon was only available through independent telephone companies in the United States. To serve that market, North Electric — based in Galion, Ohio — manufactured the Ericofon for North American consumers. This arrangement shaped how widely the phone could reach American households.
Color was one of the Ericofon’s biggest selling points. When it first launched in the American market, it was offered in 18 different colors — a remarkable range for a telephone in that era. After production transferred to North Electric, the color options narrowed to eight. The most widely produced and popular shades were bright red and bright white. Pastel blues, greens, and pinks were also part of the lineup. For special promotions, limited quantities were produced in transparent and metallic finishes.
American consumers of the era used four-prong plugs, and the Ericofon was adapted to fit that standard when it entered the U.S. market. The ads of the period leaned into the phone’s futuristic, space-age look — positioning it as both a functional tool and a style statement for modern homes.
Vintage advertisements for the Ericofon highlighted its slim, one-piece form and the wide range of colors available. The ads often featured the phone displayed in stylish home settings, aimed at consumers who wanted their telephone to be as fashionable as their furniture. The marketing leaned heavily on the idea that a phone no longer had to be a plain, purely functional object.
The Ericofon’s design was genuinely ahead of its time. At a moment when telephone design was almost entirely standardized, L.M. Ericsson produced something that looked like it belonged in an art gallery. The cobra telephone stood apart on any surface it rested on — and the vintage ads captured exactly that sense of difference.
The print ads from independent telephone companies across the U.S. often spotlighted the Ericofon’s color options as a reason to upgrade. A red phone in the kitchen or a pastel pink one in the bedroom was a deliberate choice — and advertisers knew it. These campaigns helped consumers see the Ericofon less as a utility and more as a personal statement.
