Even after the sale of his studio, Perscheid continued to work as a photographer and even rented other studio rooms in 1917. Besides artistic photography, he also always did "profane" studio portraits, for instance for the Postkartenvertrieb Willi Sanke in Berlin that between 1910 and 1918 published a series of about 600 to 700 numbered aviation postcards, including a large number of portraits of flying aces, including Manfred von Richthofen a number of which were done by Perscheid.
Perscheid continued to take photographs after selling his studio in 1917, even renting out other studios. He also took on "profane" portrait photography, including a significant number of portraits commissioned by Willi Sanke's postcard company between 1910 and 1918 for their aviation postcards series.