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These ancient weights helped create Europe's first free market more than 3000 years ago | Science | AAAS
![Henry VII's trial of weights and measures at the exchequer in 1497, a clerk, bottom right, is seen burning measures which do not come up to standard. Setting standards for weights and Henry VII's trial of weights and measures at the exchequer in 1497, a clerk, bottom right, is seen burning measures which do not come up to standard. Setting standards for weights and](https://c8.alamy.com/comp/MBTB02/henry-viis-trial-of-weights-and-measures-at-the-exchequer-in-1497-a-clerk-bottom-right-is-seen-burning-measures-which-do-not-come-up-to-standard-setting-standards-for-weights-and-measures-was-neccessary-to-maintain-commercial-confidence-in-trade-and-penalties-for-selling-short-measure-were-severe-henry-vii-1457-1509-king-of-england-and-lord-of-ireland-from-old-england-a-pictorial-museum-published-1847-MBTB02.jpg)
Henry VII's trial of weights and measures at the exchequer in 1497, a clerk, bottom right, is seen burning measures which do not come up to standard. Setting standards for weights and
![The Weights and Measures (Abbreviations of Units of Measurement) Regulations (Northern Ireland) 1967 The Weights and Measures (Abbreviations of Units of Measurement) Regulations (Northern Ireland) 1967](https://www.legislation.gov.uk/nisro/1967/220/images/nisro_19670220_en.jpg)
The Weights and Measures (Abbreviations of Units of Measurement) Regulations (Northern Ireland) 1967
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