He donated a large portion of his collection of porcelains to the Louvre Museum in 1894 It is now in the Guimet Museum in Paris.
A flight of stairs with decorated stair risers from the Chakhil-i-Ghoundi Stupa has been almost fully restored and can now be seen at the Guimet Museum in Paris.
Jewellery from Suttukeny, dated to the 2nd century BCE, is on display at the Musée Guimet in Paris.
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n° 19: A private mansion built in 1913, in the neo-classic style, by René Sergent for Alfred Heidelbach which currently houses the galleries of the Japanese and Chinese Panthéon Bouddhique of the Guimet Museum.
In Paris the 40-year-old student Hong Jong-u worked at the Guimet Museum, where he translated the Chunhyangjeon (춘향전; the tale of Chunhyang), Shimcheongjeon (심청전) and the Jikseong haengnyeong pyeonram (직성행녕편람; a Korean fortune-telling book) into French.