Example image of eyePlorer eyePlorer map for 'Avoirdupois': Mass Ounce Pound (mass) Units of measurement Metric system Metrication United Kingdom United States Latin Old French Norman language Standard French French language Stone (mass) English units Imperial units North America Thirteen Colonies Kilogram Mendenhall Order Pound-force Hundredweight Long ton Pounds per square inch Index of standards articles Tea caddy Grain (mass) Catty Comparison of the imperial and US customary measurement systems World Circus Sideshow Copper units of pressure Dharni Gold gram 1303 BeoCom Birdsville Races Troy ounce Troy weight Non-SI unit prefixes Apothecaries' system Dram (unit) Champagne fairs St. Petersburg Declaration of 1868 Gold bar Tael Tourism in Singapore Cooking weights and measures Paper density Quintal Samira Hill Gold Mine