Mühürdarzade Nuri was born in Sivas, Divriği in 1886. He lost his father at early age. After a bright studentship, young Nuri started working at Ziraat Bank (Bank of Agriculture) at the age of 17 to support his family. His period of life in government duty was spent with honesty and protecting public against burden of interest rates. With the announcement of constitutional monarchy, employees of the Ziraat Bank were charged in reformist activities. Nuri Bey, in this extent, was assigned in İstanbul in 1911. He rapidly prometed in his career there but in the times of invasion he resigned and began his own career. First he started to sell the cigarette paper. He didn 't satisfy in this bushess and then he established greater investments. He attended the government's national funded railway project in the Republic Era and in this extent, he laid 2012 kilometers of railway. He found out that the problems related with establishment and improvement of the Turkish Air Force would not be resolved by buying a few aircraft with the local campaings. In 1936, he established an aircraft factory in Beşiktaş/İstanbul and a pilot school where Yeşilköy/İstanbul airfield is now located. Turkish Air Association ordered 65 gliders and 10 airplanes. Gliders were delivered but aircraft were not delivered with questionable reasons where Demirağ had significant loss of money. National Airlines didn't show interest in his new aircraft projects. He had started his career by saying "victory is in the wings of the aircraft", but unfortunately he was not understood. And supperted. instead his properties were sequestrated. All his attempts were failed. He founded the first opposition party in Turkey. But he failed. He was elected as an independent parliament member from Democrat Parti quota in 1954. He succumbed to diabetes in 1957.