The 1971 United Kingdom postal workers strike was a strike in the United Kingdom staged by postal workers between January and March 1971.
1971 United Kingdom postal workers strike Wikipedia
The strike was Britain's first national postal strike and began after postal workers demanded a pay rise of 15-20% then walked out after Post Office managers made a lower offer. The strike began on 20 January and lasted for seven weeks, finally ending with an agreement on Thursday 4 March. After voting over the weekend, the strikers returned to work on Monday 8 March 1971. The strike overlapped with the introduction of decimal currency in the U.K.
A wide range of officially licensed and unlicensed private posts operated during the strike to fill the gap left by the withdrawal of official postal services. Some were genuine commercial services that provided local, national and international deliveries, but many were set up by stamp collectors and stamp dealers to provide philatelic material for collectors.