[1][3] By 1938 she had begun to exhibit her textiles, and she became known for a strongly geometric style featuring stripes and checks, initially in earth tones.
[1][2][4] During World War II, she worked with Børge Mogensen to create fabrics for his new line of mass-produced beechwood furniture inspired by Shaker designs.
[1] She continued to work with Morgensen, and her palette of muted colors and grays became brighter, complementing the oak that was his preferred material after the war.
[1][3][4] Although Ahlmann herself worked only with wool and cotton (never synthetics), she developed a reputation for being able to cross easily between the techniques of hand weaving and the demands of industrial textile production.
[1][3] Ahlemann's designs are considered timeless,[1][5] and her stature in the field was recognized in 1948 with the Tagea Brandt Rejselegat, a travel scholarship awarded to outstanding Danish women, and again in 1978 when she received the Royal Swedish Academy of Art's C. F. Hansen Medal.