About This Phone
In 1962, Christo wrapped a pre-production, field trial model of Ericsson’s latest greatest phone, the Dialog. This was one of his earliest "wrapped objects.” During this period, he was living in Paris and began wrapping everyday domestic items—magazines, bottles, chairs, and even a Volkswagen Beetle—to explore the "hidden" nature of familiar objects. While his most famous "Wrapped Telephone" collaboration with the L.M. Ericsson company didn't happen until 1985, his original 1962 sculptural work—titled simply Wrapped Telephone—used the then-brand-new Dialog model.
Wikipedia
Ericsson Dialog is a Swedish telephone model by Ericsson, released 1964. Millions of the model were sold and it retained its place in homes well into the 1990s. The Ericsson company presented King Carl XVI Gustaf of Sweden with a unique handmade Dialog telephone on his 40th birthday.