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In page Arne Jacobsen:

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In 1929, in collaboration with Flemming Lassen, he won a Danish Architect's Association competition for designing the "House of the Future" which was built full scale at the subsequent exhibition in Copenhagen's Forum.[8] It was a spiral-shaped, flat-roofed house in glass and concrete, incorporating a private garage, a boathouse and a helicopter pad. Other striking features were windows that rolled down like car windows, a conveyor tube for the mail and a kitchen stocked with ready-made meals.[9] A Dodge Cabriolet Coupé was parked in the garage, there was a Chris Craft in the boathouse and an Autogyro on the roof.[10] Jacobsen immediately became recognised as an ultra-modern architect.[citation needed]