Mr. Krüll proved himself a skillful entrepreneur and it was not long until the marriage of German precision and Italian mastery gave life to a perfect mixture of superior quality, true refinement, and pure luxury which quickly afforded Mr. Krüll an enviable reputation in the brush industry. He subsequently gained numerous high-profile customers, including royalty.
Under Mr. Krüll’s innovative oversight, the business took flight and he soon had over five hundred employees and agents working for the company. But this fasttrack to new and prosperous heights was abruptly disrupted during the First World War in 1917, when all production was forcibly stopped, and Mr. Krull suffered the expropriation of the company by local authorities.
In 1923, Mr. Krüll accomplished the monumental feat of buying back the company by sacrificing his prized collection of postage stamps, a lifelong passion, and securing a loan of two million liras.
In 1936 after Mr. Krüll’s passing, Walter Carlo Antonio, the fourth born son of Herman Krüll, assumed leadership and formally named the company Acca Kappa in honor of his father.
Unfortunately, in 1943 during the Second World War Acca Kappa was again taken away from the family, despite the Krülls being an integral part of Italian society and many records indicating the heroic acts of Herman Krüll Jr. during the conflict, including the rescue of six Italian patriots who had been captured by the Germans.