Undercurrents number 7 the magazine of radical science and peoples' technology
Undercurrent 275 Finchley Road NW3 1974
Special issue dedication to the liberation of communications. The magazine ran to 63 issues between 1971-1984 - approximately bi monthly. Striking cover design on this issue. 50pp. Good copy. House magazine for the alternative technology movement. This issue with contributions by Peter Harper, Editor without portfolio.