[1] The collection comprises some 1,700 objects including Goryeo celadons, Joseon white porcelain, Buddhist art, Korean folk art, archaeological materials, and paintings, including Heron by Kim Myeong-guk with an inscription by Hayashi Razan.

As a young adult, Jeong initially worked in difficult manual labor jobs, including as a dockworker.

In them, Jeong made a point of juxtaposing a historical Japanese narrative, that Koreans were unenlightened and had little culture, with the beauty of the art.

The magazine was well-received; an article in the Kyoto Shimbun once praised it and lamented the fact that Koreans had been viewed so poorly.

The relics acquired from this effort eventually became part of the Koryo Museum of Art's collection.