Showa Retro Paper Airplane Kit (Yasuaki Ninomiya) vol. 1 Original price: ¥2,600 This is an old item from a house cleaning. ♦︎ Yasuaki Ninomiya (April 10, 1926 - November 15, 2023, age 97) was a Japanese paper airplane designer, chairman of the Japan Paper Airplane Association, member of the Japan Industrial Designers Association, Doctor of Engineering, and private pilot. He was also a visiting researcher at the Hard SF Research Institute. From Wikipedia ↑ ……………………………………………… ♦︎ 15 paper airplanes can be made. ♦︎ The case shows some signs of aging. Please understand this before purchasing. ♦︎ Please purchase only if you agree with the above. This is an old item stored at home. Please purchase only if you agree.