The bold and brash K-106 makes the cut for this week’s Geometric theme courtesy of its swooping, stadium-style tubular arms.

This shape (essentially like a racing track) isn’t strictly considered a basic geometric form, yet we love how it fuses the linear with the circular.

The chair itself is of mysterious origin with no identified designer. Given its predilection for the tubular and the style of its upholstery (a rolled foam frequently used in autos and small aircraft), K-106 likely dates to the 1930s.

K-106 is available in a limited edition reproduction in ultra brick leather with walnut-stained beech armrests.

See Modernista for details.