Model Engineer - Vol. 147 - Issue: 3664 / 4th - 17th September 1981

Model Engineer - Vol. 147 - Issue: 3670 / 4th - 17th December 1981

Model Engineer - Vol. 134 - Issue: 3345 / 17th - 31st May 1968

Model Engineer - Vol. 140 - Issue: 3498 / 4th - 17th October 1974

Model Engineer - Vol. 142 - Issue: 3538 / 4th - 17th June 1976

Model Engineer - Vol. 143 - Issue: 3556 / 4th - 17th March 1977

Model Engineer - Vol. 135 - Issue: 3366 / 4th - 17th April 1969

Model Engineer - Vol. 143 - Issue: 3554 / 4th - 17th February 1977