# Weights and Measures Act 1985, Part II: Description of United Kingdom primary standard of the pound


A platinum cylinder about 1.35 inches in height and about 1.15 inches in diameter marked “PS 1844 1 lb”, having its edges rounded off and a groove about 0.34 inch below the top of the cylinder.

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Source: https://www.legislation.gov.uk/ukpga/1985/72/schedule/2/part/II (the official version)
Page: https://openlegislation.uk/weights-and-measures-act-1985/schedule-2/part-II
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.