Popular Science - Nov 1951 - Page 23
"Bed Bikes" Save Work
These two cyclists, lying down on the job, are brothers Svend and Knud Nielson of Copenhagen, Denmark. Off on a trip around the world by leg power, they were photographed in Munich, Germany. The oddly designed vehicles, built by the owners themselves, are supposed to take the work out of pedaling. The Nielsons, who began their trip in mid-summer, expect to complete it in three years, financing themselves by peddling pictures of the bikes.

ВЕЛОСИПЕДЫ-КРОВАТИ ЭКОНОМЯТ УСИЛИЯ Эти два велосипедиста лежат на работе. Братья Свенд и Кнуд Нельсоны из Копенгагена (Дания), путешествующие вокруг света с помощью силы своих ног, были сфотографированы в Мюнхене (Германия). Странного дизайна велосипеды были сконструированы ими самими. Нельсоны начали своё путешествие в середине лета и планируют совершить его за три года, обеспечивая свою поездку материально с помощью продажи фотографий своих необычных велосипедов.

Popular Mechanics - Mar 1952 - Page 133
Reclining Bicycles
Two brothers from Copenhagen, Denmark, are pedaling their way around the world — while lying down! Their bicycles are built on long, horizontal frames which permit them to pedal while reclining. Their heads are pillowed on convenient headrests, and the bicycle handle bars pass beneath their legs. he brothers expect to finance their three-year, round-the-world trip by selling picture postcards of the odd vehicles.

WEIRD WHEELING — Two Danish brothers from Copenhagen have drawn many amazing looks from onlookers during the first month of their round-the-world journey by bikes. Their strange vehicles, shown above as they passed through a Munich, Germany, street, enable them to peddle while lying down. The brothers, Svend Aage and Knud Erik Nielsen, expect to finance the three-year tour through several continents by selling picture postcards of their unusual vehicles.