But only a fraction of them , put at around 700 , joined the NCP .
Some 6,000 members had left the CPGB by the end of 1977 in a membership decline that would accelerate throughout the 1980s .
Only a fraction of CPGB , put at around 700 , joined the NCP .
Some 6,000 members had left the CPGB by the end of 1977 in a membership decline that would accelerate throughout the 1980s .