Titelblatt des "Rapport sur le choix d'une unité de mesures", 1791 (IMG)

— by [réd. par Borda, La Grange, La Place... [et al.] — last modified May 25, 2020 11:07

Titelblatt der Convention du mètre, 1875 (IMG)

— by Ministère des affaires étrangères de France — last modified May 25, 2020 11:07

National Prototype Meter IMG

— by unbekannter Photograph — last modified May 25, 2020 11:10

20-Lire-Münze aus Italien, 1882 IMG

— by D.j.mueller — last modified May 25, 2020 11:17

Cercle de Borda IMG

— by unbekannter Künstler — last modified May 25, 2020 11:24

20-Franken-Münze aus der Schweiz, 1889 IMG

— by D.j.mueller — last modified May 25, 2020 11:27

20-Franc-Münze aus Belgien, 1874 IMG

— by D.j.mueller — last modified May 25, 2020 11:44

Jean-Baptiste Joseph Delambre (1749-1822) IMG

— by portrait: Louis Boilly — last modified May 25, 2020 11:50