Closeup of National Prototype Meter Bar No. 27, made in 1889 by the International Bureau of Weights and Measures (BIPM) and given to the United States, which served as the standard for defining all units of len More
Krypton-86 lamp used for definition of Metre between 1960 and 1983. Exhibited at room 6 of NIST's museum, according to source. Deutsch: Krypton-86-Lampe für die Meter-Definition zwischen 1960 und 1983. Lt. Quel More
Computer generated image of International Prototype Metre bar, made of 90% platinum - 10% iridium alloy. This was the standard of length for the SI (Metric system) from 1889 until 1960, when the SI system ch More
A close-up of the end of the standard yard of 1855 showing the engraving and the gold plug
A view of the standard yard of 1855 showing the two gold plugs that indicate the precise distance of one yard
Original image description from the Deutsche FotothekMessinstrumente & Maß & Maßstab
Original image description from the Deutsche FotothekGeometrie & Landwirtschaft & Vermessung & Maßeinheit & Längeneinheit & Schuh & Rute
A krypton gas discharge lamp. Exhibit in the National Museum of Nature and Science, Tokyo, Japan. Photography was permitted in the museum without restriction.
Deutsch: Sebastianskapelle, Messstäbe an der Außenwand der Kapelle für Holz- und Tuchmaß des Weyrer Wochenmarktes um ca. 1590 This media shows the protected monument with the number 20355 in Austria. (Co More
Deutsch: Sebastianskapelle, Beschreibung der Messstäbe an der Außenwand der Kapelle für Holzklafter und Duech Ellenn (Tuch Elle) um ca. 1590 This media shows the protected monument with the number 20355 More
Fig. 1. Form of Bar Adopted for International Standards of Length. From Measuring Tools, Machinery's Reference Series #21. See the preceding link for context.
中文（简体）: 夏商周朝尺 English: This XVIth century illustration show the evolution of chǐ imperial measurement unit with time. Texte is wrote from right to left. First line: 商湯十二村半之尺 (Under Shang Tang reign, Shang dyna More
Pierre Simon Fournier's scale of his typographic point system (from Manuel Typographique, 1764)Español: Escala de puntos tipográficos de Pierre Simon Fournier en su libro Manuel Typographique, 1764
Deutsch: Vergleichender Maßstab. [von links:] Zentimeter Pariser Zoll à 12 Lin. Engl., NAm. russ. Z. à 10 Lin. Rheinl. u. dän. Zoll à 12 Lin. Österreich. Zoll à 12 Lin.
Deutsch: Regensburg, Altes Rathaus: Historische Längenmaße ("der stat schuch der stat öln u. der stat klafter") This SVG file was uploaded with Commonist.
Measures of length, square maesures and measures of capacity of the most important states. Français : Mesures de longueur, mesures de surface et mesure de capacité des états les plus importants. Deutsch: I. More
Illustration from 1908 Chambers's Twentieth Century. Comparison of Centimetres with English Inches. This image is the correct size at 300 dpi.