http://www.legislation.gov.uk/uksi/1957/1586/contents/made

The Superannuation (National Physical Laboratory and Civil Service) Transfer Rules 1957

Westlaw

King's Printer of Acts of Parliament

2011-04-05

PENSIONS

These Rules provide for service in the National Physical Laboratory of certain employees who were appointed before 4th August, 1914, and were taken into the civil service before 2nd April, 1918, to be reckoned as unestablished civil service for the purposes of the Superannuation Acts.