Rain gauge testing. Met Office employees calibrating and testing tilting siphon-type rain gauges. These gauges are used to measure the amount of rain falling at a particular location. The Met Office is the UK's national weather monitoring and forecasting service. This work is being done by the Instrument Calibration Section, in the General Meteorological Instrument Test Room. Photographed in 1962, in Bracknell, UK, where new headquarters for the Met Office were built between 1959 and 1962.
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