پرونده:Ni,28.jpgThis image was copied from en.wikipedia.org. The original description was: English: Nickel sample. Slovenščina: Nikelj v epruveti. Photo by RTC. English
پرونده:Daguin-ni-germanophile-v.jpgthe French Colonial Empire and the surrounding context. French «NI GERMANOPHILES / NI ANGLOPHILES / MAIS FRANCOPHILES" (non catalogué)), vu avec bureau